Smart Wearable Bluetooth Stereo B20 Hands-Free Calls Insert TF Card Speaker Watch Timer Bluetooth Speakers
Parameters:
1. Output power: 3 w 2. The whole machine sensitivity: 360 mv
3. The signal-to-noise ratio: 80 db 4. Charging voltage: DC 5 v， 500 ma
5. Frequency response: 120 hz - 20 KHZ 6. Bluetooth parameters: Bluetooth V2.1 + EDR
Function characteristics:
1. The speaker adopts effective acoustic design， the sound quality
2. Bluetooth audio transmission and calls hands-free calls
3. Bluetooth autodyne， while listening to shoot
4. FM radio function
5. The voice prompt all kinds of working condition
6. Support the TF card playing and support WAV/mp3 format file
7. Built-in high capacity lithium battery， battery life is long
Note:
1. The first use of charging more than 2 hours， please
2. This machine is the length of the playing time related to the volume of songs
3. This product may not be on the high temperature， damp environment， more can not get wet in the rain or strong shock
4. The machine bluetooth connectivity， according to you use varies according to the connected bluetooth devices，
Or compatibility differences， and take the function.
5. This machine can plug in DC5V adaptor when charging or computer USB interface. Bright red light when charging
6. Boot state， the standby time can be up to two days
7. Don\'t read such as meet TF card， or bluetooth connection does not match， is the compatibility problems
Warm prompt: dear friends， in order to avoid trouble， the consignee name， please write the full name， thank you for your understanding and cooperation.
';