Alpha Bluetooth Headphones

Bluetooth specification: V4.1 Sleek, sharp and simple: Easy to use and aesthetically pleasing The Bluetooth technology enables you to go to the gym, run, cycle and 10m away from your Bluetooth device Leave your phone in the locker room and still have control of your song choice with just a click of a button Built in microphone: You can answer or reject calls with just one tap on the side of the headset. Hands-free and clear quality sound Adjustable headband: Allows you to create the perfect fit and maximum comfort Support 3.5mm audio input, convenient for use Built-in 500mAh Lithium-ion battery: You can be on the move all day with these headphones with the long battery life of 8-10 hours per charge Charging time is just for 2 hours, wait for the blue flashing light on the control panel Wearing type: Headband  Function: Answering Phone, Bluetooth, Microphone, MP3 player, Song Switching, Voice control Connectivity: Wireless  Connecting interface: 3.5mm, Micro USB  Application: Computer, Mobile phone, Portable Media Player, Sport  Sound channel: Two-channel (stereo)  Frequency response: 2.402GHZ-2.480GHZ SNR: No less than 80db Working Time: 8-10 hours Bluetooth distance: W/O obstacles 10m  Bluetooth protocol: A2DP v1.2, AVRCP, HFP, HSP Battery Types: Lithium-ion battery  Battery Voltage: DC 5V  Battery Capacity (mAh): 500mAh Package Contents: 1 RLX Wireless Bluetooth V4.1 Headset Support Handsfree with AUX Slot, 1 x USB Charging Cable, 1 x Audio Cable, 1 x User Manual