GW12 Fit For Sport Earbuds,Wireless Sports Earbud wholesale,Sports Wireless Headset manufacturer,Sports Wireless Headset wholesale Feature 1. In-ear earbuds is fit good for Ear 2. Small volume,light weight, Fit for Sport 3. True wireless surroun dstereo 4. Good sound quality, strong bass, low power consumption 5. Support format: CD, OGG, MP3, ASF, WMA, WA, MP3PRO, RM, REAL, APE, MODULE, MIDI, VQF, AAC Bluetooth version 5 Chip ALT8763 Power input DC 5V. Battery capacity 3.7v,45mAh. Charging box 3.7 V, 450 mah Use time 4 hours. Charging time about 1-2 hour. Working temperature - 10 ~ 50 Connection distance 10 meters Main material ABS fireproof plastic. Aizerd is a china manufacturer of electronic products such as in-ear metal earbuds, With many years'export experiences, our sweat-proof sports headset, magnetic wireless earbuds, true wireless bluetooth headphone, waterproof bluetooth speaker, fashion touch speaker, has been welcomed In international markets. If you need it, please click here for more product information.