ITEM NAME:Xt11 Magnetic Music Bluetooth 4.2 Earphone Sport Running Wireless Bluetooth C9B1 Xt11 Magnetic Music Bluetooth 4.2 Earphone Sport Running Wireless Bluetooth C9B1 Magnetic design, in-ear design, waterproof anti-sweat, intelligent noise reduction, Bluetooth 4.2, low power transmission, power display, Chinese and English.Built-in lithium battery safety, use one hour a day, only need fresh once a week, say goodbye to frequent refills.Waterproof design, you can enjoy music for recreation and sports. Chip one for two.Support two mobile phones at the same time, switch freely, play games and calls Transmission distance: outdoor distance in a straight line of 10 meters.Battery capacity: 55 mAh polymer lithium battery.Listen to music time: 2.5 hours Support up and down music / pause play. Pairing mode: long, red, blue and fast flash support is in pairing mode Chinese and English voice switching: When the red and blue lights alternately flash, press the power button twice. Plug Type: Wireless Function: For Mobile Phone, For Internet Bar, for Video Game, Monitor Headphone, HiFi Headphone, For iPod, Sport, Common Headphone Wireless Type: bluetooth Connectors: None Style: Neckband Communication: Wireless Active Noise-Cancellation: Yes Support Memory Card: No Is wireless: Yes Support APP: Yes With Microphone: Yes Resistance: 8 ohm Support Apt-x: No Sensitivity: 122+/-3dB Frequency Response Range: 20-20Hz Volume Control: Yes Vocalism Principle: Electrostatic Waterproof: Yes Control Button: Yes Bluetooth version: version 4.2 Talk Time: 2.5 hours Standby time: 130 hours Charge time: 1-2 hours Operating Current: 22MA Standby current: 4uA Your prompt: Quick start: POWER ON Suspending Suspend: Power Off State of the fast connection: to peel Quick connection: you device is connect Prompt disconnect: you device is disconnect The low battery prompt: low battery Button function: long press for power on, long press to turn off, click music pause / play /.Wireless Type: bluetooth. With Microphone: Yes. Bluetooth version: version 4.2. Plug Type: Wireless. Communication: Wireless. Is wireless: Yes. Pairing mode: long, red, blue and fast flash support is in pairing mode.