QINERSAW Wireless Bluetooth Earbuds with Punchy Bass, IPX6 Waterproof Sport Earphones, 20H Playtime, Twin/Mono Mode & Built-in Mic - Perfect for Running, Gym Workouts & Commuting (Black)

Bluetooth headsets bring you strong, balanced sound, can provide a high-quality listening experience, you will experience the crystal clear world of calls brought by wireless headsets.Specification:Color: BlackStyle: In-EarBluetooth version: 5.0Transmission distance: Up to 10m(barrier-free space)Frequency range: 2.4GHz-2.48GHzSupport protocols: A2DP, AVRCP, HSP, HFPFrequency range: 20Hz-20KHzSPL: 115dBImpedance: 16ΩMusic/call time: About 5-6 hoursStandby time: About 1000 hoursCharging time: About 1-2 hourWorking environment: -10℃ to 50℃Input voltage/current: 5V/＞500mAOutput power: 7mW+7mWCharging case size: 6.6 * 3.55cm /2.6 * 1.4inIf you have any questions about this product, please contact us and we will answer for you until you are satisfied. I wish you a happy shopping!