Graffiti sports noise reduction headset Bluetooth 5.0 headset wireless stereo Features Enjoy a good quality 40MM large drive unit, using high-performance acoustic devices, after long-term debugging by the tuner, each syllable is almost flawless. The high-account Bluetooth low energy high-quality CSR chip walks freely and stabilizes a 10 meter barrier-free transmission distance. Smart compatible with most mobile phones, tablets, computers and other devices on the market, metal 3.5mm audio cable iOS and Android can be changed at will. The omnidirectional noise reduction Kefeng high-definition hand-hidden high-sensitivity microphone design supports 360 omnidirectional microphones such as video and call recording. The elegant arc foldable design shrinks freely as we go, and it can be easily stored in the bag to go out on the street and be a good travel companion through the node design. Music games and entertainment are not limited. Full-painted mountain matching, whether it is songs, rock music, jazz, mobile phones, or computer games, can enter the sound of being in one machine. One more option TF player supports TF player function, the stored music can be played through SD card. parameter Product model: Bluetooth C100 Sound unit: 40mm Pairing name: VT02 Impedance: (32 15%) n, 1KHz Battery capacity: 380MA / H Frequency response: 20-20KHZ Use time: 20-24 hours Sensitivity: 105dB +/- 3db (1KHz) Standby time: off state> 3 months Maximum output power: 30mw Charging time: 1-2 hours Talk time: 15-16 hours Charging method: Micro USB 5V Shutdown standby current: 1.5uA Working voltage: 3.7V Charging current: 180MA contain 1x headphones 1x data cable 1x manual