Eklasse EKBTHP12BJE Bluetooth Headphone

Bluetooth Version: V4.2, Transmission Distance: 10M, Input Voltage: 3.7-5V, Transmission Frequency: 2.45GHz, Frequency Response: 15-20KHz, Speaker Dia: Φ40mm, Battery: 300mAh lithium battery, Charging Time: 3 hours, Support MIC/line in/TF/FM, Foldable design