ITEM NAME:Magnetic Bluetooth Wireless Bass In-ear Stereo Earphone Earbud Headphone Headset Product descriptions: 1. It's sweat-proof and splash-proof and can let you enjoy outdoors activities 2. CVC intelligent noise reduction to provide high-quality music 3. Music play time is about 4 hours. Talking time is about 6 hours, enhance greatly the time of use 4. Can display Bluetooth power on your IOS device 5. Support multi-point connection 6. Bluetooth version: V4.2 7. Bluetooth protocol: HFP/HSP/A2DP/AVRCP/CVC 8. Workable distance: 10m (barrier-free space) 9. Charging hours: 1.5hours 10. Charging voltage: DC 5V 11. Sensitivity: 98dB +/- 3dB 12. Frequency response: 20-22000Hz 13. Use: For iPhone Android Mobile phones, Portable Media Player, Sports Packing list: 1 x E3B Bluetooth Earphones 1 x User Manual 1 x USB Charging Cable 6 x Earbud Tip.6 x Earbud Tip. Can display Bluetooth power on your IOS device. Bluetooth version: V4.2. Bluetooth protocol: HFP/HSP/A2DP/AVRCP/CVC. 1 x E3B Bluetooth Earphones. 1 x USB Charging Cable. Support multi-point connection.