The iHM60 is an amazing approach to audio that offers size defying sound. Speaker connects to a computer or other USB power source via the included USB cable to recharge the internal lithium ion battery. Remarkable vacuum bass design gives surprising volume and bass response in a speaker that fits in your palm. Perfect for laptops, cell phones, iPhone, iPod and other MP3 Players, any audio source. Buy two for simulated stereo sound. Available in translucent neon colors.