Firstsing Bluetooth Headset sport stereo Handsfree Noise Reduction earphone supports iOS Android PC

Bluetooth:V4.1
Battery:80mAh
Frequency Range:2.401GHZ～2.482GHZ
Operation:Class 2
Mode:headset/handfree/A2DP/AVRCP
Operating range:up to 30 feet (10 metres)
MP3 Playing Time:5-6 hours
Standby Time:100 hours
Charging Time:2-3 hours
Operating system: iOS / Android / PC
Voice prompts for incoming calls are transmitted directly to the wireless headset. You'll never have to take your phone out of your pocket for a genuine wireless, hands-free experience.
wireless earbuds were created with high quality sound in mind. With 2 earbuds in stereo mode, you’ll hear every detail and get a fantastic surround sound feel. Sound quality and convenience, never looked so good.
Warning: Hold down the power button for 5 to 8 seconds until the indicator blinks red and blue. Then open Bluetooth from the phone and look for this headset, then connect it.