Highlights 3 Music Playing Modes Crystal Clear Hands-free Call 5V / 3.4A Dual USB Charge Ports Wide CompatibilitySpecification Dimensions:2.95 in * 1.77 in * 5.12 in Weight:0.1300 lb Available Ship to:United StatesDetails *Features*: **3 Music Playing Modes*:With strong FM signal,it can play music from your wireless-enabled audio devices(such as,smartphone,tablets or audio player,etc.) to car stereo system. It also support play music from TF card(up to 32GB) or USB disk(up to 32GB). And,it supports MP3/WMA format. **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. **5V / 3.4A Dual USB Charge Ports*:The one with musc icon is for USB disk reading or 5V / 1A output charging. The other with charge icon is for fast charging(5V / 2.4A output),charges your tablet or other devices in fast speed. **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). **Wide Compatibility*:Our iMounTek in-car wireless FM transmitter is well compatible with for iPhone 8/iPhone 8 plus/iPhone X/iPhone 7/iPhone 7 plus/Samsun/HTC/Blackberry/Sony/ iPad and Tablet,etc. *Convenient knob volume control *Specifications*: Material: ABS plastic Display: LED screen Input: 12-24V Output: DC 5V+/-0.25 USB Output: 5V/3.4A max Wireless Connection: Stable Wireless and Strong FM signal Protocols Supported: A2DP, HFP, AVRCP Wireless Transmission Distance: =32ft/10m FM Frequency Range: 87.5-108.0Mhz TF Card Supported: 32G max USB Driver Supported: 32G max Audio Format Supported: MP3, WMA Size: 4.4 x 3.8 x 8.7 cm/1.7"×1.5"x3.4" (L×W×H) Weight: 33g/1.17oz *Package Lists*: 1 × Car Wireless FM Transmitter 1 × User Manual