FEATURES
1. Brand: OPENHEART
2. Model: S21
3. Type: Sports wireless Bluetooth headphones
4. Bluetooth Chip: Qualcomm CSR 8635
5. Standby Time: >=300 hours
6. Music Time: >= 16 hours
7. Charging Time: <= 2.5 hours
8. Battery capacity: 300mA
9. Working Distance: <=10m
10. IPX 4 Splashproof: IPX4 against sweat,solashes and rain
11. Button Control: Volume control,songs change.play and pause,answer and reject calls with just press on the buttons on the right earphone,no need to operate on the phone
12. Package include: S21 earphone, Micro USB charge cable, Spare cotton pad for the earphone, English user manual, Retail box
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