Highlights 4 Music Playing Modes Crystal Clear Hands-free Call Foldable and ConvenientSpecification Dimensions:2.95 in * 3.54 in * 1.38 in Weight:0.1000 lb Available Ship to:United StatesDetails *Features*: **4 Music Playing Modes*:With stable Wireless and strong FM signal connection,it can play music from your Wireless-enabled audio devices to car stereo system. It also support play music from MMC card(up to 32GB),USB flash disk(up to 32GB). The aux-in makes it can stream music from MP3,MP4 and other audio devices with 3.5mm port. Also,it supports MP3/WMA music formats. **Crystal Clear Hands-free Call*:Stable Wireless connection and CVC noise cancellation technology of high-sensitive microphone ensures crystal-clear calls. Meantime,it will ensure safe driving when answer incoming call. Support auto switch between hands-free call and music playing. Also supports automatic On/off memory for music. **Keep Your Devices Fully Charged*:One USB charge port(5V/2.1A Output) has built-in smart charge IC can identify the connected device and supply the optimal charging solution to your different devices(safely charges your smartphone,tablet or other devices in fast speed). The other USB port allows for charge(5V/1A) and USB driver input. **Foldable and Convenient*:The flexible neck adopts 45°ustable design for the optimal viewing angle and operation experience;Works well with most Wireless-enabled devices and it supports automatic power-off memory function. **Effortless Operation*:Simply insert it into the cigarette lighter socket,turn your car FM radio on,find an empty frequency,and then set the FM transmitter to the same frequency as the car's FM radio. Easily streams music and calls directly from your mobile devices to car stereo system via FM radio signal(87.5-108.0 MHz). Come with a 21-key remote controller for easy use. *Specifications*: Materials: ABS + Aluminum Alloy Wireless Connection: Stable Wireless and Strong FM connection Wireless Transmission Distance: 32ft Audio Format Supported: MP3/WMA Input Voltage: DC 12V-24V USB Output: 5V/2.1A max FM Frequency Range: 87.5-108 MHz Audio Input: USB Disk Reading, MMC Card Reading, 3.5mm Jack MMC Card Supported: 32GB USB Driver Supported: 32GB Remote Battery: Built-in CR2025 coin Battery Size of Head Part: 3.15"×1.97"×0.75" (L×W×H) Color: Blue with Black Size: 7.5×9×3.5 cm/2.95'×3.54'×1.38'(L×W×H) Weight: 45g/0.10lbs *Package Lists*: 1 x Car Wireless FM Transmitter 1 x Audio Cable 1 x Remote Controller 1 x User Manual