Headphones Edifier W820BT K

DRIVER UNIT:40 mm NdFeB drivers BLUETOOTH VERSION:Bluetooth V4.1 SUPPORTED PROFILES:HFP, HSP, A2DP, AVRCP FREQUENCY RESPONSE:20 - 20,000 Hz IMPEDANCE:32Ω SOUND PRESSURE LEVEL:100 dB Length (cm): 19.3 Width (cm): 8.5 Height (cm): 23.5 Net Weight (kg): 0.50 Gross Weight (kg): 11.20 Pieces per box: 20