Sunnybuy L21 TWS Earphones Bluetooth 5.0 Headphones Bluetooth  (Black, True Wireless)

Bluetooth Earphones Product number: TWS-L21 Wireless Type: bluetooth bluetooth version: V5.0 Style: In-Ear Waterproof: No Communication distance: 10m(no obstacles) Charging time: about 2 hours Standby time: about 120 hours Music time: about 4 hours Battery: Lithium polymer battery Support agreement: HEP/HSP/A2D/AVRCP Earphone battery capacity: 3.7V 50mAh Charge box battery capacity: 3.7V 300mAh Charging box recharge earphones: 5-6 times (both earbuds) Function: for mobile phone, HiFi headphone, for iPod Color: black, white Material: ABS silicone earphone cap Size: about 2*16*14mm/0.08*0.63*0.55inch Charging box size: about 28x64x42mm/1.10*2.52*1.65inch Feature 1. Bluetooth 5.0, more stable and faster connection. 2. Fast seconds, Bluetooth 5.0, automatic seconds, with headphones can be used 3. Light, comfortable to wear, free to adjust, not easy to fall off 4. 3.5-4 hours working time per charge for the earbuds, 5-6 times full charge by the charging case. 5. Comfort fit & wide compatibility. Different sized ea