Enjoy your music while on the go. In-line microphone with answer and end call button enables a smooth transition between audio playback and telephone use. In-line volume control allows you to adjust music without ever touching your mobile device. Inclined in-ear earbuds allow for long-time wear with little stress on your ears. Back of earbuds are magnetic to sit securely around your neck when earbuds are not in use. Built-in lithium battery can be charged with the included micro USB cable. Complies with CPSIA, Prop 65. 1" W x 3" H x 2.5" L