3 in 1 Multi-functional Desktop Mobile Phone Telescopic Bracket Bluetooth Audio 1. Bluetooth version: 5.1 2. Transmission distance: 10m 3. Battery capacity: 3000mAh 4. Playing time: 8-10 hours 5. Signal-to-noise ratio: 85dB 6. Frequency response: 20Hz-20KHz 7. Working voltage: 5V 8. Speaker: Built-in 1 unit 4Ω 5W full-frequency internal magnetic speaker + diaphragm + independent box 9. Support mobile and tablet devices below 12.9 inches 10. 52mm large-size full-frequency dynamic unit, bringing 360-degree omnidirectional low-frequency balanced sound field 11. Bluetooth 5.1 technology, lower power consumption, faster transmission, stable and continuous connection 12. It is a bluetooth speaker and a mobile phone stand, free your hands for calling, watching videos, watching movies, playing games, and enjoy the free experience quietly 13. The angle can be adjusted freely, and the height can be adjusted freely 14. Triangular load-bearing golden ratio, strong load 15. Strong support, to prevent falling, the angle can be adjusted freely 16. Small size, easy to fold and carry without installation 17. Large-capacity lithium battery, long-lasting battery life, you don’t have to worry about the power of the phone while charging 18. Non-slip silicone pad at the bottom, stable and not easy to dump 19. International universal USB interface, easy to charge 20. Product weight: 325 grams 21. Product size: 152x86x56mm