The iD55 fits in your car's cupholder for easy access to music and hands-free mobile calling on the road. The rechargeable mono speaker with Bluetooth and speakerphone capability looks and sounds great anywhere. The speaker provides great sound that's perfect for your music, games or apps. An auto-pairing and -linking feature makes Bluetooth setup simple and fast. The built-in lithium-ion battery is rechargeable, so you can enjoy music on the go without worrying about batteries. Built-in mic, ATI SoundClear® voice echo cancellation and answer and end controls make speakerphone use a pleasure.