M27 Waterproof TWS Wireless Earbuds with Bluetooth5.3 and Stereo Sound

M27 TWS Wireless Earphones Bluetooth5.3 Stereo Headphones Sport Waterproof Earbuds Headset Charging Box With Mic Features: - Bluetooth 5.3 technology provides fast and stable signal transmission - IPX7 waterproof rating makes it ideal for sports and outdoor activities - Dual 8mm speaker units deliver high-quality stereo sound with powerful bass - Lightweight and ergonomic design provides a comfortable and secure fit - Charging case with a large 2000mAh battery capacity, providing extended playtime and charging on-the-go - One-button control for easy operation and access to various functions Specifications: - Bluetooth specification: V5.3 - Bluetooth Profile: A2DP, AVRCP, HFP, HSP - Working voltage: 3.1V~4.2V - Charging voltage: 5V-1A - Speaker specification: 8mm*2 - Frequency response: 20Hz~20kHz - Battery capacity of the headset: 50mAh - Battery capacity of the charging box: 2000mAh - Transmission distance: >10-20m - Call play time: about 4-6 hours - Charging time of headset: 1.5 hours - Charging time of the charging box: 2 hours Note: Actual battery life may vary depending on usage and other factors. The earphones may not work properly when submerged in water or exposed to high-pressure water.