Eklasse EKBTHP09TW Bluetooth Headphone Black/Red

Bluetooth Version: V4.0, Loudspeaker: ∮40 32ohm 10mW *2, SNR: ＞90Db, Frequency: 20HZ～4KHZ, Standby Time :500H, Talk Time:12H Above, Music Time:14H Above, Charge Time: 2±0.5H, Transmission Range: 10M, Power supply mode: Built-in 3.7V 400mAh Li- polymer battery charged by using micro USB, Foldable Design