RioRand Generic Touch control Wireless Bluetooth stereo headset sunglasses glasses+3 colors lens for iPhone 5s 5c 5 4s 4, Samsung S3 S4 S5, LG, Cell Phone (Black) Battery with Protection Board, Over 1000-cycle recharge test passed Electronic Ceramic Antenna, Sign of high end Bluetooth device Original CSR Chip First I want to say this products quality is not too bad. We got 4.0 products review. For these problems. 1.For can't pair with phone problem, They need to hold press M for 5s until red and blue light flash,then they can pair it with their cellphone. Some people only press it for short time and try to pair it as soon as it power on. 2.The next/previous touch area is not working. I think they didn't touch the right place as they can't see it when they wear it. 3.Does not stay in the ear piece pops out by itself. Most earbuds have this problem I think. 4. Don't fit head. some people head are too big.