Alisak Wireless Bluetooth Headphones, Bluetooth 4.1 Earbuds Stereo Headset, Noise Cancelling Sweat Proof Earphones with Mic for iPhone X 8 7 Plus Samsung Galaxy S7 S8 and Android Phones (White)

Specifications: Bluetooth Version: V4.1 Bluetooth Profile: A2DP, AVRCP, HFP, HSP Range: 10m Working Time: 3-4 hours for music (30-40% volume) Charging Time: 1.5 hour Charging Input: USB 5V Dimension (L*W*H): 70x 1.2 x 0.7 cm Weight: 11g COMFORT WEARING WITH SECURE FIT: Designed in a ergonomic angle,Included S/M/L eartips and in-ear earhooks to ensure fit snugly in your ear without hurting your ear or popping off while moving around or working out Latest Bluetooth 4.1 version: Support almost all the bluetooth devices. eg Tablets, PC, Laptop,Android and iPhone smartphones. Warranty Description: Every sale includes an 12-month,worry-free guarantee to prove the importance we set on quality. If any issues arise, we will happily send a replacement on us