The first FULLY wireless earbuds with 5H of continuous play. Connects to any Bluetooth enabled device (supports all Bluetooth generations). Enjoy a certified high quality sound for listening to music and answering phone calls without touching your smartphone. K'asq earbuds have an in-unit battery life of 5 hours, a record, and 5 additional hours in provided USB enabled mini charging box, totaling 10 hours of autonomous play. K’asq promises a unique listening experience thanks to sound curves optimized at each level (acute to base), a certified acoustic quality of 4/5 and a passive-noise reduction of 40%. K'asq earbuds are rainproof IP55 and resist to perspiration, to heavy rain and even to shower. K'asq is made to fit any ear thanks its strong built-in anti-fall system with in-ear rubber wings in 3 sizes (S, M, L) included in each pack and its ultra-light weight (0.32 oz.). K'asq earbuds fit so comfortably that you nearly forget them when using them -- perfect for running, jumping, or calling your friends while you do both. K’asq fits any active lifestyle. Available in two versions with additional color bands : Sport (grey, white, orange) or City (white,light blue, red).