Muffs L comes with the latest Bluetooth V4.1 and powered by high intensity drivers which deliver strikingly realistic audio experience with enhanced bass response. The soft well cushioned ear shells and adjustable headband lets you to adjust right size for a perfect fit. These features let you play long hours of music without giving you red-ears or heavy-head with feather light weight of just 111 gm. Now you don't need to worry about the low battery when you are listening to music on headphone. So when your smartphone is low on juice, the headphone allows you to use the AUX port and switch off the Bluetooth of smartphone to conserve its battery. Similarly the same headphone can be used to enjoy the music from non-Bluetooth devices like TV, some laptops or PCs using Aux port. For any issues contact us on [ 9555 245245 ]from 10AM-7PM Monday to Saturday.