JS270 Wireless Bluetooth Headset Hanging Ear Business Sports Earphone1. No earplugs, no earplugs, no ear picking, no pain, the combination of mechanics and aesthetics, no feeling, comfortable and not easy to fall2. Minimalist shape, full of craftsmanship and aesthetics, color mix and match3. A single earphone can be used for 8 hours when it is fully charged, and the charging box can recharge the earphone twice, with a total battery life of up to 30 hours, ensuring continuous power and continuous music for every trip4. The two earphones are equipped with Bluetooth chips, regardless of the main ear and the auxiliary ear, seamless switching between single and double ears5. Bluetooth 5. 1 chip, the transmission speed and connection stability are greatly improved, and can provide ultra-low power consumption performance6. 10 meters transmission distance, IPX5 waterproof7. Pick up and connect, no need to wait8. Open type, you can talk and listen without taking off the earphones9. Compatible with most devices with blue function on the market, mobile phones, tablets, computers, etc. can be connected10. 16mm large size unit, enjoy high-definition sound quality11. Dual-channel lower latency, easy to control when playing games, automatic connection when you leave the cabin12. Power supply mode: USB chargingbuilt-in lithium battery13. Battery capacity: about 50mah for earphones, about 500mah for charging compartment14. Frequency response range: 20Hz-20KH15. Input: DC 5V 200mA (headphone), DV 5V 1A (charging box)16. Bluetooth protocol: A2DP, AVRCP, HFP17. Approximate working hours: 8h (single earphone) + 16h (charging box)18. Chip type: Jerry