Vic Firth's Bluetooth Isolation Headphones are a great practice tool, and double as great ear protection! Bluetooth functionality means you can use them without having to deal with a cable, and when you're done practicing to audio and just want to protect your ears, you can just... flip off the Bluetooth!
The battery will last around 20 hours, and a 3.5mm cable is included if you decide to wire up or run out of battery mid-session. They lower outside sound levels by 25 decibels to protect your precious hearing!