Item Type: (TX / RX) Bluetooth Wireless Audio Adapter Material: ABS Color: As Picture Shown Display Size: Approx. 0.96in Weight: Approx. 89.0g/3.1oz Bluetooth Version: V5.0 + EDR, A2DP, HSP, AVRCP Protocol Support: UART, HCI Bluetooth Distance: 10m/32.8ft Transmission Rate: 4Mbps High Speed Sensitivity: -90dBm Working Voltage: 5V Working Current: 50ma Battery Capacity: 300mAh Battery Type: Li-ion Battery Package List 1 x Adapter 1 x Manual 1 x Charging Line 2 x Connection Cable 1Unique screen design, the bluetooth transmitter can freely choose bluetooth earphones or speakers to connect. 2The Bluetooth name will be displayed on the display, you can choose freely, which is more convenient and will not connect by mistake. 3Make your TV and other devices Bluetoothenabled, which can stream audio to Bluetooth headsets, or enable the home stereo Bluetooth function to receive music from mobile phones and tablets. 4The portable adapter can be used as a transmitter or receiver at the same time, and has a handsfree function. 5In transmitter mode, convert TV, PC, CD player, MP3/MP4 to Bluetooth transmitter, receiver mode is very suitable for sound system that transmits music in the home or vehicle.