1) Great Sound: big Φ57 mm speaker unit, latest Bluetooth 4.1.
2) Cool Look: 195° rotary and turbine housing.
3) Comfortable wearing: Soft Protein leather and ergonomic design.
4) Supports SD card(up to 32G), FM radio function, and has built-in mic.
5) Audio-in& Audio-out: Connect via audio cable when out of battery, connect via audio cable to another headphone.
6) Multi-language voice prompts and user manual (EN, CN, FR, ES, JP). 7) APP-enabled: Controls music playing and adjust EQ. (Click to download App)