2021 New Bluetooth Earphone TWS Wireless Headphones 12D Stereo Sport Headset with Microphone Mini In-Ear Earbuds VS F9

Tips: If you can't use both ears, you just need to delete the single ear signal and manually form a team again. Team building method: turn on two headphones at the same time, doule-click any one of them, wait until one of the headphones lights out, and thenit is finished). Specifications: Product name: TWS F9. Wireless Type: bluetooth. Wireless headset version: V5.1. Style: In-Ear. Waterproof: No. Communication distance: 10 meters no obstacles. Charging time: about 2 hours. Standby time: about 220 hours. Music time: about 4 hours. Type of battery: Lithium polymer battery. Supporting agreement: HEP/HSP/A2D/AVRCP. Headphone battery capacity: 3.7v 50mAh. Charge box battery capacity: 3.7v 2200mAh. Function: For mobile phone, Hifi headphone, For iPod. Process material: ABS silicone ear cap. Size: about 2mm16mm14mm/0.080.630.55in. Charging case size: about 28mmx64mmx42mm/1.102.521.65in. Color: black/white. Package Included: A Pair of Earbuds right and left side). 1 x Charging Case. 1 x