How to use it?

1. Put the battery like on the picture, before put in earpiece in your ear, please clean very good your ear canal.

2. Before put in earpiece at your ear, please dial service number (if you use it with mobile phone). Then start to put in earpiece at your ear with round movement at your ear. Some people directly put in earpiece in their ear and then can't hear nothing, because they are not put in correct at their ear.

3. Set volume at maximum for better sound quality.

4. Use earpiece and loopset at short distance.

GSM bluetooth glasses with invisible wireless earpieces