1. Material: shell plastic
2. Bluetooth protocol: A2DP, HSP, HFP
3. Interface: USB 2.0
4. Output power: 0 ~ +4dBm
5. Receiving sensitivity: -75dB
6. Transmission distance: 10 meters
7. Frequency band: 2.4G ISM band
8. Connection method: Piconet / Scatternet Support
9. Audio decoding: 16bit codec
10. Working voltage: 5V
11. Packing list: receiver x1, wheat x1
