Wireless Headset A4tech BH230, 40 mm driver, 32 Ohm, 98db, 139g, 55h, Foldable, AINC Mic, Controls on ear cup, Leather Ear Pads, 400mAh, BT 5.3, Black

. A4Tech/Fstyler Bluetooth v5.3 Wireless Headset Advanced AI Noise Cancelling Microphone Φ40 mm High Performance Driver Unit Leather Padded Adjustable Headband On Ear Soft Leather Ear Pads Flexible 270°Rotatable Microphone Double Touch to Mute Microphone On-the-Go Flat Foldable Lightweight Design Functional Control on Headphone Extended Playtime 55H + Speed Charge 139g Super Lightweight Best for Learning, Business, Conference, etc. Operating Range: Up to 10 m Built-in Battery: 400 mAh Lithium Battery Charging Time: About 2 Hrs Frequency Response: 20 Hz - 20 kHz Sensitivity: 98 dB Impedance: 32 ohm Microphone: Frequency Response: 100 Hz - 10 kHz Sensitivity: -42 dB USB Type-C Charging Cable: 30 cm Color: Black