The eSHOTWAVE Bluetooth Earmuff can connect to your phone via Bluetooth for audio. It also features an integrated, internal microphone so you can take phone calls or transmit voice commands to your phone all while having your hearing protected. If your phone doesn’t have Bluetooth capability, we have included an Auxiliary port for connecting to your digital audio devices. AM/FM radio with antenna is also built into this earmuff. Operates on 3 AAA Batteries with a 42-hour continuous run time, battery compartment is not water proof. (Hearing protection is accomplished with a standard earmuff design and is not electronically controlled).