1. Product Size: φ51*47mm

2. Packaging Size:13.5x10x6.5cm

3. Total Weight: 395g

4. Material: ABS, Rubber, Aluminium Alloy

5. Speaker: 

Diameter--40mm    Impedance--4Ω  Power--3W  

6. Resonant Frequency (F0) :170Hz

7. Frequency Response: 150Hz–15KHz

8. Output Power: 3W

9. SNR: ≥85dB

10. Distortion: ≤0.3%

11. Working Time: based on different audio content

       1-2h with maximum volumn 

       2-4h with 50% volumn

12. Standby time: 10h

13. Battery Capacity: 3.7V/400mAh lithium battery

14. Working Voltage: 3.3V-4.2V

15. Charging Time: 1-2h

16. Charging Voltage: DC 5V/1A

17. Bluetooth Transmission Range: 15M

18. Bluetooth Version: V4.2

19. the Files Supported: HFPv1.5,A2DPv1.3,AVRCPv1.5,AVCTPv1.4,AVDTPv1.3,SPP1.0

20. Bluetooth Transmission Power: 4dBm class2