Features<br> 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.<br> The high-account Bluetooth low energy high-quality chip walks freely and stabilizes a 10 meter barrier-free transmission distance.<br> Smart compatible with most mobile phones, tablets, computers and other devices on the market, metal 3.5mm audio cable.<br> The omnidirectional noise reduction Kefeng high-definition hand-hidden high-sensitivity microphone design supports 360 ° omnidirectional microphones such as video and call recording.<br> 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.<br> 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.<br> One more option TF player supports TF player function, the stored music can be played through SD card.<br><br> parameter<br> Product model: Bluetooth C100<br> Sound unit: φ 40mm<br> Pairing name: VT02<br> Impedance: (32 ± 15%) n, 1KHz<br> Battery capacity: 380MA / H<br> Frequency response: 20-20KHZ<br> Use time: 20-24 hours<br> Sensitivity: 105dB +/- 3db (1KHz)<br> Standby time: off state> 3 months<br> Maximum output power: 30mw<br> Charging time: 1-2 hours<br> Talk time: 15-16 hours<br> Charging method: Micro USB 5V<br> Shutdown standby current: ≤1.5uA<br> Working voltage: 3.7V<br> Charging current: 180MA<br><br> contain<br> 1x headphones<br> 1x data cable<br> 1x manual<br>