- Speaker Size: 52mm * 3w * 1 
- Output power: 5w 
- Frequency response: 60Hz-20KHz 
- Sensitivity: 80DB ± 2DB 
- SNR: ≧ 80DB 
- Distortion: 0.3% 
- Optional touch buttons, easy mechanical buttons function; 
- Is the choice of the CSR8640 main wafer exposure calendar sound microphone circuit; 
- Decoding support: SBC, MP3, AAC, etc.; wired audio support: USB and AUX; 
- Bluetooth Standard: Bluetooth 4.0 CSR; 
- Bluetooth communications protocol: HS / SF A2DP AVRCP SPP; 
- Bluetooth Frequency: 2.402GHZ-2.480GHZ; 
- Bluetooth communication range: Line without blocking state, the largest 20 meters; 
- Power supply: DC 5V USB power supply; polymer battery;

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