Original QCY QY31 Sports-Style Headsets Bluetooth4.1 APT-X IPX4 Waterproof Earphone for Cellphone Tablet PC also supports larger coils

also supports larger coils

4ohm Dual Coil(Pre-installed)

4 Smartphone OS Compatibility: Android 4

Encrypt: yes

with G-Sensor for auto-recording

Original QCY QY31 Sports-Style Headsets Bluetooth4.1 APT-X IPX4 Waterproof Earphone for Cellphone Tablet PC also supports larger coilsProduct Features: Exquisite design Sports style Selecting the high level material, create a wonderful appearance with light weight. Head band type and special shapes, providing a stable and comfortable wearing experience. It would be a perfect companion for your sport life. Excellent user experience No tangled wires & Noise free Without the trouble of tangled wires, convenient for you to listen your favorite sound and videos with your headsets. With