HD sound with power-packed bass Blast that music and work it out because these are designed to deliver your music without weighing you down whilst you lift the heavy weights Don't let there be a reason to stop your workout flow, now you can enjoy your favorite tunes while working out thanks to the lasting 120 mAh rechargeable battery that delivers up to 8 hours of pure sound and a standby time of up to 240 hours IPX4 sweat and water resistant thanks to IPx4 splash resistant design, you need not worry about perspiration or sweat, Rockerz 230 are built to encourage more sweat puddles and take that bold step to run in the rain Powered by Qualcomm CSR8645 Chipset, experience the powerful, distortion-free audio performance with technologically advanced latest Qualcomm CSR 8645 chipset Never compromise on comfort boAt Rockerz 230 is a revolution in the world of sound as it combines design, shape and grip to make sure your earbuds don't fall out no matter what the activity is Rockerz 230 produces HD sound with deep, boosted bass the audio's frequency response is 20hz-20khz which is everything you need for your energetic workouts The rockerz 230 won't let you down, always be prepared no matter what the environmental conditions are, noise suppression to the near and far end, seamlessly stream high quality music wherever