Kensington SoundWave Sound Amplifying Car Mount with Power for iPhone 4-Black Car Mount amplifies sound while charging your iPhone or ipod Charger has 1 Amp to charge your iPhone or iPod, including iPhone 4 Cradle securely holds your iPhone 4 even when in a case Flexible arms let you insert and remove your iPhone 4 with one hand F & B- 4 Includes both windshield and vent mount-use the one that works best for your vehicle