Product details of HengSong S530 Mini Invisible Wireless Bluetooth 4.0 Stereo In-Ear Earphone Headset Black

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nDescription:n4.1 smart chip,Efficient transmission speed.nCompact, ultra Light Design Stereo Bluetooth Headset, Portable And Easy To Carry.nHigh-fidelity sound quality, Wireless songs enjoynVoice report number, low power remind,Connect/disconnect remind,Boot off prompts.nLong battery life, fast charging.nSupport WeChat, QQ voice calls,movie,nCompatible For Almost All The Mobile Phones And Tablet PC, etc.n nSpecification:n1. Drive: 40 mmn2. Impedance: 32 OHMn3. Bluetooth version: Bluetooth v4.1 + EDRn4. Power Level: CLASS IIn5. Output Power: 30mWn6. Bluetooth distance: 10 meters barriern7. Frequency response: 20-20000 Hzn8. Operating voltage range: 3.0V-4.2Vn9. Microphone sensitivity: -42dBn10. with A2DP / AVRCP high-quality stereo audio transmission and remote control protocoln11. Powerful noise noise cancellation circuit (Active Noise Reduction)n12. Wired and Bluetooth automatically switch to support audio inputn13. Charging time is about 1 hour (power indicator Charging: blue light lights, fully charged: blue light goes out)n14. Dimensions: Diameter length 20MM. Width 15MM. 18mm highn15. Weight about 4gn16. Talk time About 3 hoursn17. Music for about 2.5 hoursn18. The standby time is about 3-4 daysn19. Charging Power: DC5V Power Interface [the hole] (computer USB port, mobile phone charger, car charger)n20. Compatible: Compatible with Android, Apple, Microsoft, Symbian 99% of with Bluetooth cell phones(IOS cell phone has power display)

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