3rd Generation Powerful Audio FM Transmitter with Car Charger suitable for the Sony Walkman NWZ-E383 / NWZ-E384 / NWZ-E385 - Uses Gomadic TipExchange Technology Specification: Input Voltage (12-24 vDC), Cable length (50 inches), Transmitter Dimensions (2.25 X 1.25 X .25 inches), Circuit Design (Sony Walkman NWZ-E383 / NWZ-E384 / NWZ-E385 Specific) Car charger includes smart technology circuit architecture to provide precision voltage and resistor regulation specific to the Sony Walkman NWZ-E383 / NWZ-E384 / NWZ-E385. Protects the internal battery longevity by modulating the charge in a safe and efficient manner. Full FM frequency spectrum is available and is user selectable in 0.1MHz increments from 88.1 to 107.9 MHz. Advanced Digital PLL sound coding maintains stable and high quality sound. FM Transmitter has an integrated long life rechargeable lithium battery pack. Device can be used while connected to power or wirelessly via internal battery. Transmitters emit a powerful FM signal that is the maximum allowed by FCC regulation. Advanced signal isolation provides crystal clear sound quality.