Wear: In-ear Earphone
Frequency: 20Hz~-20KHz
NC level: -22/-26dB
NC Frequency width: 20HZ-1KHZ
NC chipest: AMS3421
BT chipest: CSR8645
BT version: 4.0+EDR
Impedance: 30ohms
Sensitibity: 98dB/at 1KHz
Battery: Lithium battery 80mAh
NC Technology: Feed forward
Playing Time: music:5h; NC:10h; music+NC:4h; music+NC:3.5h
Power Bank: 230mAh, twice charging


