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Pure wireless audio enjoyment in all rooms. DTS Play-Fi

The Loewe klang mr speakers are the easiest way to create the perfect interplay of music in several rooms. Thanks to the DTS Play-Fi platform, up to 32 speakers can be controlled wirelessly from one music source and up to four spatial audio areas can be set up.

Wireless multichannel connectivity. WDAL 2.0

Enjoy your new multi-room sound experience without any need for annoying speaker cables. The Loewe klang mr speakers equipped with WDAL 2.0 can be tuned precisely and completely without delay to other Loewe Multiroom speakers as wireless satellite speakers.
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home cinema set 553
home.cinema set 531
multi.room amp

►Get a discount of 304 EUR with the code "homecinemaset553"

 

Enter the code in the cart.

 

The home cinema set with 5.1.2 Dolby Atmos and DTS:X tech offers a fascinatingly realistic 3D sound experience and full music streaming with surround sound.

►Get a discount of 164 EUR with the code "homecinemaset531"

 

Enter the code in the cart.

 

The home cinema set with 5.1.2 Dolby Atmos and DTS:X tech offers a fascinatingly realistic 3D sound experience and full music streaming with surround sound. 

Powerful stereo amplifier. The Loewe multi.room amp makes your existing speakers more intelligent. It gives your passive and active hi-fi speakers a total music output of 1,200 watts at 4 ohms. The Loewe multi.room amp distributes your favorite audio content via Apple AirPlay, Google Cast, DTS Play-Fi, Spotify Connect and Bluetooth.

Product name
home.cinema set 553
home.cinema set 531
multi.room amp
Product name
home.cinema set 553
home.cinema set 531
multi.room amp
Colour:
Colour:
Bluetooth version
V4.2
V4.2
V5.0
Bluetooth version
V4.2
V4.2
V5.0
Bluetooth protocols
A2DP
AVRCP
SBC
A2DP
AVRCP
SBC
A2DP
AVRCP
SBC
Home networking standard
UPnP
UPnP
UPnP

Music power (W)
1360
1160
1200
Music power (W)
1360
1160
1200
Audio power (W)
680
580
600
Audio power (W)
680
580
600
Max. Frequency (Hz)
20000
20000
20000
Min. frequency (Hz)
35
35
20
Min. frequency (Hz)
35
35
20
True Wireless Stereo (TWS)
Driver
Passive membrane
DAB-Radio
Sound radiating to the front
Sound radiating downwards
Music data formats
DTS
DTS HD
DTS Virtual X
Dolby Atmos
Dolby Atmos Music
Dolby Audio
Dolby Digital
Dolby Digital Plus
PCM
AAC
AIFF
DTS Play-Fi
Dolby True HD
FLAC
M4A
MP3
WAV
DTS
DTS HD
DTS Virtual X
Dolby Atmos
Dolby Atmos Music
Dolby Audio
Dolby Digital
Dolby Digital Plus
PCM
AAC
AIFF
DTS Play-Fi
Dolby True HD
FLAC
M4A
MP3
WAV
AAC
AIFF
FLAC
M4A
MP3
WAV
Music data formats
DTS
DTS HD
DTS Virtual X
Dolby Atmos
Dolby Atmos Music
Dolby Audio
Dolby Digital
Dolby Digital Plus
PCM
AAC
AIFF
DTS Play-Fi
Dolby True HD
FLAC
M4A
MP3
WAV
DTS
DTS HD
DTS Virtual X
Dolby Atmos
Dolby Atmos Music
Dolby Audio
Dolby Digital
Dolby Digital Plus
PCM
AAC
AIFF
DTS Play-Fi
Dolby True HD
FLAC
M4A
MP3
WAV
AAC
AIFF
FLAC
M4A
MP3
WAV
Media playback via USB connection
Media playback via USB connection
Loudness
Audio out setting variable
Audio out setting variable
Audio-out setting fixed
Sub out
Home Screen (incl. Favourites)
Virtual surround sound
Virtual surround sound
Integrated bass/subwoofer
Loudspeaker concept
Passive membrane
Passive membrane
Loudspeaker concept
Passive membrane
Passive membrane
Separate bass and treble control
Sound radiating to the front
Sound radiating to the sides
Sound radiating upwards
Sound radiating backwards
Sound radiating downwards
avc
Equalizer Presets

Voice control with Alexa skills
Voice control with Google skills
Voice control with Apple
Voice control with Apple
Digital Link HD
Digital Link HD
Internet radio
App control
DTS Play-Fi
DTS Play-Fi
DTS Play-Fi
my Loewe
App control
DTS Play-Fi
DTS Play-Fi
DTS Play-Fi
my Loewe
Streaming services
Amazon Music
Napster
Pandora
Qobuz
Tidal
iHeart Radio
Amazon Music
Napster
Pandora
Qobuz
Tidal
iHeart Radio
Amazon Music
Napster
Pandora
Qobuz
Tidal
iHeart Radio
HiRes Audio
Multiroom technology
Apple Airplay 2
DTS Play-Fi
GoogleCast 4 Audio
Spotify Connect
Apple Airplay 2
DTS Play-Fi
GoogleCast 4 Audio
Spotify Connect
Apple Airplay 2
DTS Play-Fi
GoogleCast 4 Audio
Spotify Connect
HDMI 4k Pass Through
HDMI 4k Pass Through
Audio passthrough
Audio passthrough functions
DTS X
DTS Virtual X
DTS X
Dolby Atmos
Dolby Atmos Music
Dolby Digital
Dolby Digital Plus
Dolby True HD
MP3
PCM
PCM
Audio passthrough functions
DTS X
DTS Virtual X
DTS X
Dolby Atmos
Dolby Atmos Music
Dolby Digital
Dolby Digital Plus
Dolby True HD
MP3
PCM
PCM
Video passthrough
Video passthrough
Video passthrough functions
4K Video Pass-Through
Dolby Vision
HDR10
HDR10+
4K Video Pass-Through
Dolby Vision
HDR10
HDR10+
Video passthrough functions
4K Video Pass-Through
Dolby Vision
HDR10
HDR10+
4K Video Pass-Through
Dolby Vision
HDR10
HDR10+

Timer
Hotel Mode (Standard)
Hotel Mode (IP)
Menu languages
Languages supported
Preset buttons

CD Player
Alarm function
Light effects
Dimmable display
Channel configuration
4
4
2
Channel configuration
4
4
2
Wired subwoofer
Wired subwoofer
Built-in subwoofer
Wireless subwoofer
Wireless subwoofer
Built-in loudspeaker
Built-in loudspeaker
External loudspeaker
FM
DAB
DAB Plus
VHF frequency range (MHz)
DAB frequency range (MHz)
Integrated antenna
WDAL
WDAL 2.0
WDAL Frequency range (GHz)
5,8
5,8
5,8
Standby function

Softwareupdateviausb
Softwareupdateviainternet
Bluetooth music player
WoLAN
WoWLAN
WLAN (Wi-Fi) Power max. (mW)
<100
<100
<100
WLAN (Wi-Fi) Standard
IEEE 802.11a/b/g/n/ac
IEEE 802.11a/b/g/n/ac
IEEE 802.11a/b/g/n/ac
WLAN (Wi-Fi) Frequency range
2400 - 2483,5 / 5150 - 5350 / 5470 - 5725 / 5725 - 5850 Mhz
2400 - 2483,5 / 5150 - 5350 / 5470 - 5725 / 5725 - 5850 Mhz
2412-2472 / 5180-5320 / 5500-5700 / 5725 - 5850 Mhz
WLAN (Wi-Fi) Frequency range
2400 - 2483,5 / 5150 - 5350 / 5470 - 5725 / 5725 - 5850 Mhz
2400 - 2483,5 / 5150 - 5350 / 5470 - 5725 / 5725 - 5850 Mhz
2412-2472 / 5180-5320 / 5500-5700 / 5725 - 5850 Mhz
Wlan Supported
WLAN (Wi-Fi) encryption
WPA
WPA2
WPA
WPA2
WPA
WPA2
Wlanwifi power frequency
Höchleistung<100 mW bei 2400 - 2483,5 Mhz, Höchleistung<100 mW bei 5150 - 5350 Mhz, Höchleistung<100 mW bei 5470 - 5725 Mhz, Höchleistung<100 mW bei 5725 - 5850, Höchleistung<10 mW bei 5725
Höchleistung<100 mW bei 2400 - 2483,5 Mhz, Höchleistung<100 mW bei 5150 - 5350 Mhz, Höchleistung<100 mW bei 5470 - 5725 Mhz, Höchleistung<100 mW bei 5725 - 5850, Höchleistung<10 mW bei 5725
Höchleistung<100 mW bei 2400 - 2483,5 Mhz, Höchleistung<100 mW bei 5150 - 5350 Mhz, Höchleistung<100 mW bei 5470 - 5725 Mhz, Höchleistung<100 mW bei 5725 - 58505
Wlanwifi power frequency
Höchleistung<100 mW bei 2400 - 2483,5 Mhz, Höchleistung<100 mW bei 5150 - 5350 Mhz, Höchleistung<100 mW bei 5470 - 5725 Mhz, Höchleistung<100 mW bei 5725 - 5850, Höchleistung<10 mW bei 5725
Höchleistung<100 mW bei 2400 - 2483,5 Mhz, Höchleistung<100 mW bei 5150 - 5350 Mhz, Höchleistung<100 mW bei 5470 - 5725 Mhz, Höchleistung<100 mW bei 5725 - 5850, Höchleistung<10 mW bei 5725
Höchleistung<100 mW bei 2400 - 2483,5 Mhz, Höchleistung<100 mW bei 5150 - 5350 Mhz, Höchleistung<100 mW bei 5470 - 5725 Mhz, Höchleistung<100 mW bei 5725 - 58505
Subwoofer output
Subwoofer output
Bluetooth input
Bluetooth power max. (mW)
<10
<10
<10v
Bluetooth power max. (mW)
<10
<10
<10v
Bluetooth frequency range (GHz)
2,4
2,4
2,4
LAN connection
LAN connection
WLAN (Wi-Fi) integrated
IR Remote support
Digital audio input
Digital audio input
Digital audio output optical TOSLINK
HDMI eARC
HDMI eARC
Headphone socket
Mini TOSLINK
USB port quantity
1
USB port quantity
1
Analogue output
1
Analogue output
1
USB 3.0 port quantity
Analogue output (fixed)
Analog audio inputs
1
Analog audio inputs
1
Microphone input
HDMI output
Bluetooth protocols
HDMI output
1
HDMI output
1

Width
CM
CM
27.1 CM
Width
CM
CM
27.1 CM
Height
CM
CM
7.9 CM
Height
CM
CM
7.9 CM
Depth (without overhanging parts)
CM
CM
27.1 CM
Depth (without overhanging parts)
CM
CM
27.1 CM
Weight
KG
KG
2.2 KG
Weight
KG
KG
2.2 KG

Remote control incl. batteries
Loewe remote klang mr
Loewe remote klang mr
Remote control incl. batteries
Loewe remote klang mr
Loewe remote klang mr
Operating instructions
Operating instructions
Mains cable
Mains cable
Mains cable length (m)
2.5
Mains cable length (m)
2.5
Number of wall mounts
1
Number of wall mounts
1
Wall mounting possible
Quantity 3.5mm audio cable
Promotional addition

Mercury content (mg)
Cadmium (mg)
Air pressure (0 2000 m above sea level) (hPa)
Permissible ambient temperature during operation (degrees Celsius)
5 - 35
5 - 35
5-40
Permissible ambient temperature during operation (degrees Celsius)
5 - 35
5 - 35
5-40
Relative humidity (non-condensing) (%)
20 - 80 %
20 - 80 %
20-90
Relative humidity (non-condensing) (%)
20 - 80 %
20 - 80 %
20-90

Colour:
Colour:

Product name
home.cinema set 553
home.cinema set 531
Product name
home.cinema set 553
home.cinema set 531
Colour:
Colour:
Bluetooth version
V4.2
V4.2
Bluetooth version
V4.2
V4.2
Bluetooth protocols
A2DP
AVRCP
SBC
A2DP
AVRCP
SBC
Bluetooth protocols
A2DP
AVRCP
SBC
A2DP
AVRCP
SBC
Home networking standard
UPnP
UPnP
Home networking standard
UPnP
UPnP

Music power (W)
1360
1160
Music power (W)
1360
1160
Audio power (W)
680
580
Audio power (W)
680
580
Max. Frequency (Hz)
20000
20000
Max. Frequency (Hz)
20000
20000
Min. frequency (Hz)
35
35
Min. frequency (Hz)
35
35
Driver
Driver
Passive membrane
Passive membrane
Sound radiating to the front
Sound radiating to the front
Music data formats
DTS
DTS HD
DTS Virtual X
Dolby Atmos
Dolby Atmos Music
Dolby Audio
Dolby Digital
Dolby Digital Plus
PCM
AAC
AIFF
DTS Play-Fi
Dolby True HD
FLAC
M4A
MP3
WAV
Music data formats
DTS
DTS HD
DTS Virtual X
Dolby Atmos
Dolby Atmos Music
Dolby Audio
Dolby Digital
Dolby Digital Plus
PCM
AAC
AIFF
DTS Play-Fi
Dolby True HD
FLAC
M4A
MP3
WAV
Sub out
Sub out
Home Screen (incl. Favourites)
Home Screen (incl. Favourites)
Virtual surround sound
Virtual surround sound
Integrated bass/subwoofer
Integrated bass/subwoofer
Loudspeaker concept
Passive membrane
Passive membrane
Loudspeaker concept
Passive membrane
Passive membrane
Separate bass and treble control
Separate bass and treble control

Voice control with Alexa skills
Voice control with Alexa skills
Voice control with Google skills
Voice control with Google skills
Voice control with Apple
Voice control with Apple
Digital Link HD
Digital Link HD
Internet radio
Internet radio
App control
DTS Play-Fi
DTS Play-Fi
App control
DTS Play-Fi
DTS Play-Fi
Streaming services
Amazon Music
Napster
Pandora
Qobuz
Tidal
iHeart Radio
Amazon Music
Napster
Pandora
Qobuz
Tidal
iHeart Radio
Streaming services
Amazon Music
Napster
Pandora
Qobuz
Tidal
iHeart Radio
Amazon Music
Napster
Pandora
Qobuz
Tidal
iHeart Radio
HiRes Audio
HiRes Audio
Multiroom technology
Apple Airplay 2
DTS Play-Fi
GoogleCast 4 Audio
Spotify Connect
Apple Airplay 2
DTS Play-Fi
GoogleCast 4 Audio
Spotify Connect
Multiroom technology
Apple Airplay 2
DTS Play-Fi
GoogleCast 4 Audio
Spotify Connect
Apple Airplay 2
DTS Play-Fi
GoogleCast 4 Audio
Spotify Connect
HDMI 4k Pass Through
HDMI 4k Pass Through
Audio passthrough
Audio passthrough
Audio passthrough functions
DTS X
Dolby Atmos
Dolby Atmos Music
Dolby Digital Plus
Dolby True HD
DTS Virtual X
DTS X
Dolby Atmos
Dolby Atmos Music
Dolby Digital
Dolby Digital Plus
Dolby True HD
MP3
PCM
Audio passthrough functions
DTS X
Dolby Atmos
Dolby Atmos Music
Dolby Digital Plus
Dolby True HD
DTS Virtual X
DTS X
Dolby Atmos
Dolby Atmos Music
Dolby Digital
Dolby Digital Plus
Dolby True HD
MP3
PCM
Video passthrough
Video passthrough
Video passthrough functions
4K Video Pass-Through
Dolby Vision
HDR10
HDR10+
4K Video Pass-Through
Dolby Vision
HDR10
HDR10+
Video passthrough functions
4K Video Pass-Through
Dolby Vision
HDR10
HDR10+
4K Video Pass-Through
Dolby Vision
HDR10
HDR10+

Preset buttons
Preset buttons

Built-in subwoofer
Built-in subwoofer
Wireless subwoofer
Wireless subwoofer
Built-in loudspeaker
Built-in loudspeaker
Integrated antenna
Integrated antenna
WDAL 2.0
WDAL 2.0
WDAL Frequency range (GHz)
5,8
5,8
WDAL Frequency range (GHz)
5,8
5,8
Standby function
Standby function

Softwareupdateviausb
Softwareupdateviausb
Softwareupdateviainternet
Softwareupdateviainternet
Bluetooth music player
Bluetooth music player
WLAN (Wi-Fi) Power max. (mW)
<100
<100
WLAN (Wi-Fi) Power max. (mW)
<100
<100
WLAN (Wi-Fi) Standard
IEEE 802.11a/b/g/n/ac
IEEE 802.11a/b/g/n/ac
WLAN (Wi-Fi) Standard
IEEE 802.11a/b/g/n/ac
IEEE 802.11a/b/g/n/ac
WLAN (Wi-Fi) Frequency range
2400 - 2483,5 / 5150 - 5350 / 5470 - 5725 / 5725 - 5850 Mhz
2400 - 2483,5 / 5150 - 5350 / 5470 - 5725 / 5725 - 5850 Mhz
WLAN (Wi-Fi) Frequency range
2400 - 2483,5 / 5150 - 5350 / 5470 - 5725 / 5725 - 5850 Mhz
2400 - 2483,5 / 5150 - 5350 / 5470 - 5725 / 5725 - 5850 Mhz
Wlan Supported
Wlan Supported
WLAN (Wi-Fi) encryption
WPA
WPA2
WPA
WPA2
WLAN (Wi-Fi) encryption
WPA
WPA2
WPA
WPA2
Wlanwifi power frequency
Höchleistung<100 mW bei 2400 - 2483,5 Mhz, Höchleistung<100 mW bei 5150 - 5350 Mhz, Höchleistung<100 mW bei 5470 - 5725 Mhz, Höchleistung<100 mW bei 5725 - 5850, Höchleistung<10 mW bei 5725
Höchleistung<100 mW bei 2400 - 2483,5 Mhz, Höchleistung<100 mW bei 5150 - 5350 Mhz, Höchleistung<100 mW bei 5470 - 5725 Mhz, Höchleistung<100 mW bei 5725 - 5850, Höchleistung<10 mW bei 5725
Wlanwifi power frequency
Höchleistung<100 mW bei 2400 - 2483,5 Mhz, Höchleistung<100 mW bei 5150 - 5350 Mhz, Höchleistung<100 mW bei 5470 - 5725 Mhz, Höchleistung<100 mW bei 5725 - 5850, Höchleistung<10 mW bei 5725
Höchleistung<100 mW bei 2400 - 2483,5 Mhz, Höchleistung<100 mW bei 5150 - 5350 Mhz, Höchleistung<100 mW bei 5470 - 5725 Mhz, Höchleistung<100 mW bei 5725 - 5850, Höchleistung<10 mW bei 5725
Bluetooth input
Bluetooth input
Bluetooth power max. (mW)
<10
<10
Bluetooth power max. (mW)
<10
<10
Bluetooth frequency range (GHz)
2,4
2,4
Bluetooth frequency range (GHz)
2,4
2,4
LAN connection
LAN connection
WLAN (Wi-Fi) integrated
WLAN (Wi-Fi) integrated
IR Remote support
IR Remote support
Digital audio input
Digital audio input
Digital audio output optical TOSLINK
Digital audio output optical TOSLINK
HDMI eARC
HDMI eARC
USB port quantity
USB port quantity
Analogue output
Analogue output
HDMI output
HDMI output

Width
CM
CM
Width
CM
CM
Height
CM
CM
Height
CM
CM
Depth (without overhanging parts)
CM
CM
Depth (without overhanging parts)
CM
CM
Weight
KG
KG
Weight
KG
KG

Remote control incl. batteries
Loewe remote klang mr
Loewe remote klang mr
Remote control incl. batteries
Loewe remote klang mr
Loewe remote klang mr
Operating instructions
Operating instructions
Mains cable
Mains cable
Mains cable length (m)
Mains cable length (m)
Number of wall mounts
Number of wall mounts
Wall mounting possible
Wall mounting possible

Mercury content (mg)
Mercury content (mg)
Cadmium (mg)
Cadmium (mg)
Air pressure (0 2000 m above sea level) (hPa)
Air pressure (0 2000 m above sea level) (hPa)
Permissible ambient temperature during operation (degrees Celsius)
5 - 35
5 - 35
Permissible ambient temperature during operation (degrees Celsius)
5 - 35
5 - 35
Relative humidity (non-condensing) (%)
20 - 80 %
20 - 80 %
Relative humidity (non-condensing) (%)
20 - 80 %
20 - 80 %

Set-up solution
Set-up solution
Number of power cables
Number of power cables
anzahlversandkartonepal
anzahlversandkartonepal
Material housing
Material housing
Weight (incl. shipment)
KG
KG
Weight (incl. shipment)
KG
KG
Depth in cm (inkl. standard set-up)
CM
CM
Depth in cm (inkl. standard set-up)
CM
CM
Height (approx.) with standard set-up solution (cm)
CM
CM
Height (approx.) with standard set-up solution (cm)
CM
CM
Depth (approx.) with standard set-up solution (cm)
CM
CM
Depth (approx.) with standard set-up solution (cm)
CM
CM
Width approx. in cm (incl. shipping box)
CM
CM
Width approx. in cm (incl. shipping box)
CM
CM
Height in cm (incl. shipping box)
CM
CM
Height in cm (incl. shipping box)
CM
CM
Depth in cm (incl. shipping box)
CM
CM
Depth in cm (incl. shipping box)
CM
CM
Portable
Portable
Material front panel
Material front panel
EPREL registration number
EPREL registration number
Running time in battery mode
Running time in battery mode
Built-in rechargeable battery
Built-in rechargeable battery
Table-top use
Table-top use
Max. Power consumption
1,360 Watt
1,160 Watt
Max. Power consumption
1,360 Watt
1,160 Watt
Typical power consumption
Typical power consumption
external power supply (audio)
external power supply (audio)
Water/dirt Protection class (IP)
Water/dirt Protection class (IP)
Battery capacity
Battery capacity
Charging time (h)
Charging time (h)
USB charging function
USB charging function
Power consumption in on-mode max. (audio 1/8 volume) (W)
Power consumption in on-mode max. (audio 1/8 volume) (W)
Power consumption in quick start mode (W)
Power consumption in quick start mode (W)
Power consumption in standby mode max. (W)
< 1, 0
< 1, 0
Power consumption in standby mode max. (W)
< 1, 0
< 1, 0
Power consumption in network standby mode max. (W)
4,0 - 7,0
4,0 - 7,0
Power consumption in network standby mode max. (W)
4,0 - 7,0
4,0 - 7,0
EU energy efficiency class SDR
EU energy efficiency class SDR
Mains switch
Mains switch
Mains voltage (V)
100 - 240
100 - 240
Mains voltage (V)
100 - 240
100 - 240
Mains frequency (Hz)
50 - 60
50 - 60
Mains frequency (Hz)
50 - 60
50 - 60
Resolution (pixels)
Resolution (pixels)
Screen diagonal (in cm)
CM
CM
Screen diagonal (in cm)
CM
CM
Screen diagonal (In inches)
Screen diagonal (In inches)
Product category
Audio
Audio
Product category
Audio
Audio
Software
Software
Generation
Generation
Country of origin
Country of origin
modelljahr
2021
modelljahr
2021
Equipment
Bluetooth music player
Media playback via USB
Separate bass and treble control
Voice control with OK Google
Standby function
Voice control with Alexa Skills
Equipment
Bluetooth music player
Media playback via USB
Separate bass and treble control
Voice control with OK Google
Standby function
Voice control with Alexa Skills
Bluetooth protocols
Bluetooth protocols
Bluetooth version
4V.2
Bluetooth version
4V.2
Channel configuration
Channel configuration
Battery type (Built-In)
Battery type (Built-In)
External power supply unit
External power supply unit
Housing material
Housing material
Podcasts
Podcasts
Radio stations
Radio stations
True Wireless Stereo
True Wireless Stereo
Intended use
Intended use
Front material
High quality fabric
Front material
High quality fabric
Battery capacity (mAh)
Battery capacity (mAh)
USB charging function
USB charging function
External AC adapter
External AC adapter
Product line
home.cinema
Product line
home.cinema
Weight (gross) (kg) with standard set-up solution
KG
KG
Weight (gross) (kg) with standard set-up solution
KG
KG

NTGEW
0 KG
0 KG
2 KG
NTGEW
0 KG
0 KG
2 KG
BRGEW
0 KG
0 KG
3 KG
BRGEW
0 KG
0 KG
3 KG
VOLUM
0 M3
0 M3
0 M3
LAENG
0 CM
0 CM
39 CM
LAENG
0 CM
0 CM
39 CM
BREIT
0 CM
0 CM
28 CM
BREIT
0 CM
0 CM
28 CM
HOEHE
0 CM
0 CM
13 CM
HOEHE
0 CM
0 CM
13 CM
MEABM
0 CM
0 CM
0 CM
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Since 1923

Siegmund and David Loewe: pioneers of radio and television technology