waterproof  bluetooth in ear sport headset headphone earphone

Product Speficification:
* Chip Solution: CSR 
* "Bluetooth Version 4.1
* HIFI sound quality
* Support EDR+HFP+HSP+A2DP+AVRCP
* Frequency: 2.4GHz～2.4835GHz
* CVC 6.0 echo and Noise Isolation
* Magnetic contact , sweat proof
* English Voice Prompt
* Micro USB charge
* Working Distance:up to 10m
* Headset Battery Capacity: 100mAh (50mAh * 2pcs)
* Standby time: 500 hours
* Music time: up to 7 hours
* Connect with 2 bluetooth devices at the same time
* Superior quality TPU cable
* Iphone/Ipad battery indication
* Cable color: yellow, black, red, blue