Bluetooth Warm Knit Hat, Supports Phone Answering & Bluetooth Photo Taking & Music Playing

1. Bluetooth version: version 4.2.
2. Wireless distance: The distance is more than 10M.
3. Frequency range: 2.4 GHz.
4. Talk time: 5-7 hours.
5. Standby time: 350-500 hours.
6. Sensitivity: -75dBm.
7. Rechargeable battery: 130 MAh.
8. Charging voltage: 5V 0.7A.
9. Accessories: main body, USB data cable, manual.
10. How to use: Turn on the code, press and hold the middle button for 2 seconds, one click, the red and blue lights will light up in sequence, then the red and blue lights will flash alternately to enter the code mode; the code is successful, the blue light is always on, and the phone is turned on. Bluetooth can search for this Bluetooth name.