1. Input interface: USB 2. Bluetooth version: Bluetooth 2.1+EDR 3. Transmission distance: 10 meters in unobstructed area 4. Frequency range: 2.402GHZ-2.480GHZ 5. Support protocol: aptx-LL, SBC, A2DP, AVRCP, AFH, HFP, HSP 6. Indicator light: blue 7. Weight: 36 grams 8. Dimensions: 10.5 x 8 x 2.1 cm
