Awei A780BL Bluetooth Headset.

•Smart Bluetooth 5.0 Chip breakthrough internal integration of high-quality chips, compatible with iOS system more shock •Perfect sound High precision 40mm driver, bring you vivid sound field, sound clarity, sound shock feeling, capable of various games •Comfortable to wear Uses super soft over-ear pads, which is more comfortable for long time wear, great headphone for game player • Folding and carrying, carry it with you • 250mAh battery capacity, working for up to 10 hours • Wireless wired switching, free connection for one second • Response frequency 20Kz - 20KHz • Sensitivity 90dB + / - 3dB • Impedance 16Ω + / - 15pct