portable sport wireless earphone bluetooth 3.0

Feature:
1. Soft and scratch-Less material,unique and fashionable design,flexible and durable,easy to take,suitable for fitness.
2.conventient operation of keys.
3.Funcion:3 in 1,bluetooth,support mirco SD card(up to 32GB),FM radio, Bluetooth version:V3.0,compatible with all bluetooth devices.
4. support Music format:MP3,WMA.WAV;
5. Build-in micrphone for calling.
6. Operation Range: Up to 10 Meters
7. Output Power:55mW
8. Built-in rechargeable(lithium-Polymer) battery,chargeing the battery fully may take up to 2 hours.
9. Playing duration:up to 4 hours/ Talk time: up to 4 hours
10. Signal to noise ratio:?86dB
11. Product Size:138*126*49mm/ Weight:29g
portable sport wireless earphone bluetooth 3.0