The JLab Go Bluetooth Headphones are ideal for gym use, cyclists, runners, tri-athletes, walkers, hikers, or any kind of workout. With up to a 30 foot range of wireless connectivity, the Go Bluetooth allows you to free yourself from cumbersome wires found on traditional headphones. The behind the head design offers a lightweight, sweat proof design with a comfortable fit that"s perfect for your daily workout, outdoor adventure, or when you"re on the go. Simple controls on the headphones allow you to adjust volume, change tracks, play/pause music, or take phone calls. Music automatically pauses during calls and resumes when complete. The built in, rechargeable lithium ion battery provides up to 8 hours of play time. Compatible with iPhone, Android, Windows Phone, BlackBerry, and other Bluetooth music players. Package includes the headphones, USB 2.0 Mini Cable, User Manual, and 1 year limited warranty.