MaxTronic&reg; Qy8 V4.1 Wireless Bluetooth Headphones Best In-Ear Noise Cancelling Headphones with Microphone Mini Lightweight Sweatproof Stereo Bass Wireless Bluetooth Headset Bluetooth 4.1 Technology, easy and fast pairing with smartphones, tablets and other Bluetooth enabled music devices, aptX codec provides pure, CD-like high quality sound for compatible devices, Mini Lightweight Sweatproof Stereo Bass Wireless Bluetooth Earbuds Headset Earphones for iPhone 6/6s plus Galaxy S6 S5 and Android Phones Long Battery Life: Built-in high performance polymer 80mAh battery, 3.5 hours talking/playing time, and about 120 hours standby time Powerful Rechargeable Battery: Built-in polymer lithium battery(80mAh), up to 160 hrs of stand-by, up to 8 hrs of talk time, up to 5 hrs of listing time and 2 hrs charging time. Good noise isolation to create the optimal environment for listening to your favorite tunes, built-in microphone with noise cancellation for clear calling and friends chatting Simple-To-Use: control all functions of your music (volume, sound, song selection) and calls from your phone via our simple-to-use user interface on the headphones themselves Equipped with Bluetooth 4.1 + EDR APT-X audio decode technology, offering you perfect stereo sound. And it can connect with 2 cell phones or tablets at the same time