Description:This FM transmitter can transmits your smartphone or MP3 music to your car stereo system, so that you can enjoy your favorite tunes on the go. The transmitter supports hands-free calling and ensures your safety while driving. It comes with a USB cable to charge the built-in lithium battery (NOT a car charger). It is suitable for all types of vehicle and compatible with any smartphone or audio player with a 3.5mm audio jack.Features:1. Support hands-free phone calls. Free hands and safe driving.2. HiFi stereo sound, using digital PLL (Phase Locked Loop) technology.3. LCD with backlight displays frequency, channel selection is more convenient.4. Suitable for most mobile phones and music players with 3.5mm headphone jack.5. FM full frequency point emission: 87.5-108.0MHz (up to 200 frequencies to choose from).6. With power down memory, the current playback frequency can be stored.7. Built-in rechargeable lithium battery, do not consume the power of your phone.Specifications:Color: BlackMaterial: ABSVoltage: 5VSize: Approx. 6 * 2.2 * 1.15 cm / 2.36 * 0.87 * 0.45 inchTransmitter Distance: 10 MetersFM Frequency Range: 87.5-108.0MHzDistortion: <2%Stereo Separation: 38dBVehicle Current: 600mAStorage Temperature: -20 ~ 50Working Temperature: -10 ~ 40Lithium Battery: 85mAWorking Time: 2 - 3 Hours (on full charge)Charge Time: 3 HoursCompatibility: for iPhone / iPod / iTouch / Samsung and MoreProduct Weight: About 27gPackage Weight: About 40gPackage List:1 * FM Transmitter1 * USB Charging Cable(Other items in the pictures are not included.) Note:This FM transmitter is not with car charger function..