OWIKAR&reg; Mini In-ear Bluetooth V4.0 Headset Ultra Thin Wireless Stereo Bluetooth Earphone Headphones Earbuds Earpieces Hands-free with Microphone for IOS Android Cellphones and More (Black) TRUE HD HIGH FIDELITY SOUND - Featuring latest Bluetooth technology and state of the art acoustic components that produce incredible sound quality with deep bass and crystal clear treble. HIGH VOICE QUALITY - Noise-cancelling microphone reduces background noise (CVC 6.0) allows you to have a clear wireless conversation with others. Crystal clear and nature voice based on DSP digital noise cancelling and stable Bluetooth signal. COMPATIBLE with iPhone 6s / 6s Plus / 6 / 5s / 5c / 5 / 4s / 4, iPad Pro / Mini 2 / Mini / 4 / 3, Samsung Galaxy S6 / S5 / S4 / S3 / Note 4 / 3, LG, Sony, Moto, HTC M9 / M8, Android and Windows Tablets, and Other Bluetooth Device COMFORTABLE AND SECURE FIT WITH IPX-7 WATERPROOF RATING - feature Ergonomically designed flexible ear hooks with gel flex silicone earbuds to ensure your headphones stay comfortably firm in place to guarantee fatigue free ears and tangle free comfort. LONG BATTERY LIFE - Built-in improved lithium polymer battery allows seamless enjoyment of music for up to 6 hours and 180 hours stand-by time with a quick charge of only 2 hours.