EDIFIER EDF W600BT_BLUE Edifier W600BT Blue / Bluetooth and Wired Over-ear headphones with microphone, BT 5.1, 3.5 mm jack, Dynamic driver 40 mm, Frequency response 20 Hz-20 kHz, On-ear controls, Ergonomic Fit, Battery Lifetime (up to) 30 hr, charging time 3 hr