Specification:
Capacity : 1200 mAh
Color : Black
Connection Type : 2.4 GHz wireless via nano-USB, Wired via 3.5 mm audio jack
Cable Length/Type : 3.5 mm cable 1.2 m, USB charging cable 1 m
Warranty Type : Customer Replaceable Unit (CRU)
Controls : Volume up / down, Power button, Flip to mute
Distortion : 200 - 20 KHz < 3%
Driver : 50 mm drivers
Frequency Range : 20 Hz - 20 KHz
Impedance : 32 ohms
Power Requirement : 5V / 1.5A
RMS Power : 50 mA
Sensitivity : 105 ± 3dB / 1mW @ 1 KHz
Audio Input : 4 - pole 3.5mm or 2.4GHz wireless
Brand : Lenovo