2023 Bluetooth 5.3 Headset Wireless Earphones Mini Earbuds Stereo Headphones With Charging CaseFeatures: BT5.3 Headphone: Wireless dual ear design, left and right ear channel separation. You can use the headset solely, or used them in pairs. BT 5.3 brings high data transfer speed, stable connection and low power consumption. Fast & Easy Paring: Auto power on and fast pairing between left and right earbuds. Easy and quick to pair with BT-enabled audio devices. Effective distance is about 10 meters in open space. Long Battery Life: 50mAh battery in each earphone ensures about 3-4 hours of working time. Charged automatically in the 200mAh charging box which enables dual headsets charging for about 2 times. Supports up to 5 hours in total. Born for Sports: lightweight and mini size fit well to your ear canal and provide you long time wearing comfort. It guarantees stability when doing sports. With charging box, easy to store and carry anywhere. 7.2mm drive unit provides powerful low frequency, delicate, soft medium and high frequency. With DSP intelligent noise reduction technology, it can the ambient noise, no need to worry about call quality.Specifications: BT Version: BT5.3 Transmitting Distance: 10m/33ft BT Protocol: HFP, A2DP, HSP, AVCRP Frequency Range: 20-20000Hz Sensitivity: 98dB Impedance: 16O Waterproof: IPX5 Charging Box Capacity: 3.7V 200mAh Earphone Battery Capacity: 2 x 3.7V 40mAh Music Play Time: about 4 hours (depends on music volume) Charging Time: about 1.5 hours for earphones, 2 hours for charging boxPackage Include: 2x Mini Earphones (Left and Right Ear-buds) 1x Charging box 1 x USB Cable