Feature TURE WIRELESS STEREO Portable Stereo Sport Headphones Sports Headsets Lightweight Earbuds With Mic for iPhone Samsung HTC LG and other Bluetooth devices STATE OF THE ART EARPHONES DESIGN Best workout Bluetooth headphones Great for walking Jogging Hiking Biking Gym and some other activity SUPERB SOUND QUALITY High Quality Chip for Stereo Sound and Bass Sound Clear HighLow Volume Its Easy To Take and Make Calls Voice Dialing with Superior Microphone Quality Ideal for Car Calling and Friends Chatting or Working Use CVC NOISE CANCELLATION TECHNOLOGY It has excellent noise cancellation technology with the use of CVC depth noise reduction Bilateral stereo lossless sound quality it provides a shock enjoyment with entering the ear in a deep bass voice The sound hole design reduces an echo back of sound waves making the sound room more pure and the high medium and bass more harmonious LONG BATTERY LIFE Built in 800mAh battery box it can charge the two true wireless earbuds 3 times without cable Up to 5 hours music or talking time you never have to worry about running out of battery on your wireless headphone COMFORTABLE AND SECURE Ergonomically designed with gel flex silicone earbuds to ensure your headphones stay comfortably firm in place to guarantee fatigue free ears Compatible Device For Bluetooth enabled mobile phones tablets computer watch MP4 speaker Specifications Output DC5VCharging time 2HInput AC110 220VFrequency 2 4GHZ