DESTEK Wireless FM Transmitter Radio Adapter Car Kit with 2.4A 12V USB Car Charger and 3.5mm Audio Plug for Smartphones, Tablets HIGH QUALITY STEREO, perfect audio transmission function guarantees AMAZING sound quality. NOTE: From May 30,2016 on, the original red LED display updated to BLUE LED display, softer and cosier to look EXTRA FAST CHARGER , charging mobile devices very fast(Output 5V/2.4A). Also can support 9-24V voltage from the car cigarette lighter COMPATIBLE WITH ANY DEVICES with a 3.5mm jack, like smartphones, tablets, MP3 and MP4 players MULTI-FUNCTION,charge your device through the USB port while you're listening to music. Super travel companion EASY TO OPERATE, simply connect via 3.5mm jack and car charger, press the button to the right FM channel showed easily-read LED display