Maxbo Bluetooth Earphone Sound Noise Cancelling Wireless Stereo Headset Removable Earhook for Excercise with Mic (Bluetooth 4.1, aptX, CVC 6.0 Noise Cancelling, Sweatproof) Bluetooth 4.1 Version: equipped with Bluetooth 4.1+CSR Chip fast pairing with smartphones, the signal of earphone is strengthened and Bluetooth working range ups to 38ft, allowing you the freedom from cords and greater flexibility of phone placement proximity. Perfect Sound Quality: CVC Noise Cancellation 6.0 technology & EDR APT-X Lossless Psychoacoustic coding, restore CD level sound quality and makes you enjoy clear sound for calls and music playing in noisy occasion. It is a great ideal for high quality music while running, jogging, cycling, skating, etc. 100mAh Rechargeable Battery: The 100mAh rechargeable build-in battery is of high performance, less than 2 hours to get it fully charged. The playing time is up to 7 hours, and standby time is up to 10 days, you will find it is superior to other ordinary ones. Wonderful for Excercise: Unique ergonomic designed earhooks and smaller & lighter Controller Bar ensure more secure and comfortable wearing, IPX4 Waterproof and Sweatproof design withstand the intense heat and sweat of exercise, and even jogging in light rain. Universal Compatibility: Maxbo-13 Bluetooth earphones can pair with 2 different Bluetooth devices with iOS or Android system at a time. Compatible with iPhone 6/6s, 6 Plus/6s plus, SE, 5 5c 5s 4s,iPad Air, iPad mini, Samsung Galaxy S6,S5,S4,S3. Note 4 3, HTC, Sony, LG smartphones and more. This is a great convenience for those who use two cell phones, without switch the headsets.