ITEM NAME:13 TWS Smart Bluetooth 5.0 HIFI Earphones Wireless Handsfree Sports Earset Product Description Description: Features: 1. Stylish appearance, smart touch, abandon the traditional button-type headphones to squeeze the ears. 2. With a charging case, charge at any time. 3. Life waterproof. 4. Compared with Bluetooth 4.2, the new generation Bluetooth 5.0 has lower power consumption, faster transmission speed and more stable signal. 5.HiFi sound quality, listening to songs is better. Specification: Bluetooth chip: BT8832 Bluetooth version: 5.0+edr Speaker specifications: 8 miles of true copper ring rubber Frequency response: 20Hz ~ 20KHz Sensitivity: 120db Impedance: 32ÃŽ © Rated power: 3MW Working time (medium volume): 3-5H Transmission distance (m): 10 meters Power consumption: 18-22 mAh Input power: 93mW Headphone charging time: 1H Input power: 93mW Headphone battery capacity: 50 mAh Charging battery capacity: 350 mAh Charging time outside: 1.2H Battery voltage: 3.2-4.2v Packing size: 90x60x35mm/3.54x2.36x1.38in Weight: 103.2g Note: Please allow slight size differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understand. Included: 1 Pair X Headphones 1 X Charging Case 1 X Charging Cable 1 X User Manual.HiFi sound quality, listening to songs is better. Compared with Bluetooth 4.2, the new generation Bluetooth 5.0 has lower power consumption, faster transmission speed and more stable signal. Bluetooth chip: BT8832.