Audio FM Transmitter / Internet Music Vehicle Adapter with integrated Car Charger for the Blackberry Storm - uses Gomadic TipExchange Technology Transmits clear and rich audio for over 30 feet while recharging your Blackberry Storm Uses Digital PLL sound coding technology to maintain stable and high fidelity sound quality. TipExchange enabled charging port simultaneously powers and recharges your Storm while transmitting the audio Quality backed by Gomadic Lifetime Warranty Optimized for use with Internet music services such as Pandora; Slacker; Rhapsody and more! Can operate anywhere from the 88.1 to 107.9 MHz frequencies