New X23 TWS Bluetooth 5.0 Earphone Wireless Headphones Stereo Hands-free Sport Bluetooth Earphone Earbuds With Microphone Specification: Bluetooth version: 5.0 (Bes2000iz) Supporting protocols: A2DP, AVRCP, HFP Speaker: 32 ohms, 6MM Microphone sensitivity: -42DB Antenna frequency: 2.4GHZ Working voltage: 3.1V~4.2V Charging voltage: 5V-500MA Headphone battery capacity: 50MAH Charging box battery capacity: 800MAH Transmission distance: >10m Talk time: 4 hours Play time: 3-4 hours Headphone charging time: 30-45 minutes Storage box charging time: 1-2 hours Support system: All Bluetooth-enabled devices and mobile phones. Package Included: 2 x Earphones 1 x Charging Box 1 x Charging Cable Features & details Ergonomic design: Comfortable wear, no pain. 800 mAh battery capacity provides 16 times on-the-go charging for headphones. Small body, Mini delicate, easy to carry, no burden, easy to hide in the pocket, really experience the music everywhere. After a professional PX5 level water-proof and sweat-proof test, even if the rain washes, the headphones are harmless, no matter whether it is cloudy or rainy, running fitness and any exercise can accompany you around. The headphones can be used together, enjoying real stereo sound, or individually, especially useful while using your hands-free function.