Bluetooth: version 5.0, class 2
Chipset: CSR BC8675
Profiles: receiver mode: A2DP, AVRCP
transmitter mode: A2DP
Supported codecs: receiver mode: aptX HD, aptX low latency, aptX, AAC, SBC
transmitter mode: aptX HD, aptX low latency, aptX, SBC
Carrier frequency: 2.402-2.480 GHz
Range: 10 m (line of sight)
Supports dual link: simultaneously stream music to 2 Bluetooth devices
Supports multipoint: simultaneous pairing of 2 audio sources
Battery type: li-ion 3.7 V, 450 mAh
Charging voltage: 5 V, 350 mA via micro USB port or supplied power unit
Battery operation (aux): receiver mode: 17.5 hours
transmitter mode: 20 hours
Battery operation (SPDIF): receiver mode: 12.5 hours
transmitter mode: 14 hours
Recharging time: 2 hours
Connections: 1 x 3.5 mm stereo jack (analog input/output)
1 x Toslink (optical input)
1 x Toslink (optical output)
Dimensions: 70 x 70 x 22 mm
Frequency band: 2.4 GHz
Weight: 0,14 kg
Material: Plastic
Power connection: Mains Input Socket (M) Micro USB (F) mounting version Power supply cord for USB A mains connection; Battery/battery pack
Power supply: 110-240 V AC, 50/60 Hz 5 V DC 500 mA
Device
Weight: 0,06 kg
Height: 2,2 cm
Depth: 7 cm
Width: 7 cm 

Bluetooth transmitter and receiver with aptX HD, aptX Low Latency and dual link
-Bluetooth 5.0 with latest CSR8675 chip
-Switchable between transmitter mode and receiver mode
-Supports aptX HD for high-definition audio streaming
-Supports aptX Low Latency for lip-sync sound while watching TV
-Transmitter mode: wirelessly stream audio from your TV or any audio source to 2 Bluetooth headphones or speakers
-Receiver mode: wirelessly play music from your smartphone via your home stereo system
-Dual link function: simultaneously stream music to 2 Bluetooth devices
-Multipoint function: 2 Bluetooth audio sources can be paired for playing different songs
-Convenient music control in receiver mode (play/pause, volume, title selection)
-Codec and status indication via LED
-Internal battery with up to 20 hours operating time (charging 2 hours)
-Supports simultaneous charging and streaming
-Records 8 devices and automatically reconnects with existing paired devices
-Audio input/output via 3.5 mm jack and optical Toslink jacks
-Super compact and lightweight
-Delivery includes:
-1 x Bluetooth transceiver
-1 x Micro USB charging cable
-1 x power adapter
-1 x 3.5 mm audio cable
-1 x 3.5 mm/RCA adapter cable
-1 x digital, optical Toslink cable
-Power connection: Mains Input Socket (M) Micro USB (F) mounting version Power supply cord for USB A mains connection (provided); Battery/battery pack Built-in
-Control: Bluetooth