Description:A convenient and safe call will provided for you due to the hands-free design.What it can offer you is noise reduction (CVC) technology and call echo cancellation.It is made of good quality material, durable to use. It has automatic memory function of power failure frequency point.The length of this product is 8.5cm, the width is 5cm and the height is 4.2cm. It can automatically connect back after power-on and automatically enter the pairing state.It is suitable for most cars. Inserting the product into the cars cigarette igniter socket, and after turning on the power, the display will show the current voltage of the car battery to monitor the battery status of your car.Item Name: FM TransmitterMaterial: ABS,MetalOperating Temperature: 0 Degree Celsius63 Degree CelsiusRated Operating Voltage: 12V-24VMusic Format: MP3/WMA/FLACU Disk Capacity: Max Support: 32GTF Card Capacity: Max Support: 32GBluetooth Transmission Distance: 5M-10MFM Transmitting Frequency: 87.5MHZ-108MHZModel: T24Frequency Response: 20HZ-15KHZSize Details: Size: 8.5cm x 5cm x 4.2cm/3.35 x 1.97 x 1.65 (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x FM Transmitter1 x User Manual