Features: brand new and high quality Pairing with your bluetooth-compatible headsets and watch the game late at night.You will never be afraid to affect your family. It can fast and stable transmission without tangling. The bluetooth-compatible transmitter allows support dual headsets connection. Plug and for play, laptop/TV instantly turn wireless,listen to music and watch TV with wireless headphone. External antenna,reduce signal interference,stable connection without dropping line. Specifications: Material:ABS Color:Black Bluetooth-compatible Version: V 5.2+EDR Input Interface:USB / AUX Power:USB 5V Operating Range: up to 33 feet (10 meters accessibility) Frequency Range:2.402GHZ-2.480GHZ Supported Protocol:AptX LL,AptX,SBC,A2DP,AVRCP Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Bluetooth-compatible Transmitter 1x 3.5mm Audio Cable 1x 2DB Antenna 1x Manual