True Wireless Stereo EarphoneT21 White

Bluetooth: V5.3, Chips AD6973D4 Battery: 300mAh for charging case, 30mAh for earbud Charging time 2 hours Working Time: 3.5H for phone call, 4H for music play; Standby time 180 H Semi-in ear design, HIFI music, ENC earbuds Selling Points: 1. Open and connect 2. Large battery capacity, lasting for long time 3. Comfortable to wear 4. Use fingers to control