HOCO Sports ES2 Wireless Sports Earphone Headset - Black - Blue

1. Speaker: 10mm., impedance: 16Ω ± 15%., frequency response: 20 ~ 20000Hz.Bluetooth specification: Bluetooth V4.1. protocols: A2DP. AVRCP. HSP. HFP. transmission range: 10 meters, transmission frequency 2.4GHz., charging voltage: DC5V., power line length: 55cm; Net weight: 15g. 2. Charging time is about 2 hours, call time: over 3.5 hours, music time over 4 hours and over 180 hours of standby time. 60mAH. 3. User-friendly magnetic design provides rapid and convenient storage, earplug has magnetic adsorption function, can be hung around the neck and effectively avoid loss, and is also a cool look for fashion people; sports ear hook can be adapted to all kinds of ear type, to achieve a better wearing and listening experience and is not easy to slide off; TPE line is strong and not easy to knot.”