Item Type: Bluetooth Adapter Material: ABS Bluetooth Version: V5.0 + EDR, A2DP, HSP, AVRCP Protocol Support: UART, HCI Bluetooth Distance: Approx. 10m/32.8ft Colour: Black Transmission Rate: 4Mbps high speed Sensitivity: -90dBm Working Voltage: 5V Working Current: ≤50mA Battery Capacity: 300mAh Display Size: 0.96in How to Use: 1. Plug the Bluetooth receiver into the device. 2. Turn on the Bluetooth function to connect. 1、With a unique screen design, the Bluetooth transmitter can freely choose the Bluetooth headset or speaker to be connected. The Bluetooth name will be displayed on the display, you can choose freely, which is more convenient. 2、Let TVs and other devices have Bluetooth capabilities. Stream audio to Bluetooth headsets, or enable the home stereo Bluetooth function to receive wireless music streams from mobile phones and tablets. 3、The adapter can be used as a transmitter or receiver at the same time, and has a hands?free function. In transmitter mode, convert TV, PC, CD playe, MP3/MP4 to Bluetooth transmitter. Suitable for Ipod. 4、Very suitable for sound systems that transmit music at home or in vehicles. You can also enjoy yourself while exercising or watching TV programs. 5、The portable Bluetooth adapter is small in size, light in weight and easy to carry. 1 x Bluetooth Receiver 1 x Manual 3 x Connection Line