Supporting music playing, voice navigation, broadcasting and hands-free calling, the FM transmitter is multifunctional and practical.The intelligent bluetooth-compatible 5.0 chip allows for stable and quick transmission. The LED digital display screen allows for real-time monitoring of voltage.Made of metal and ABS material, the FM transmitter is stainless and durable to use.The length of the item is 98mm, width is 68m and height is 43mm.The FM transmitter supports bluetooth-compatible music, micro SD card and USB flash disk, and the maximum format of MP3, WMA and WAV is 32GB.Item Name: FM TransmitterMaterial: ABS,MetalOutput Voltage: DC or 5VOutput Current: 4.4A (Dual Interface)Operating Voltage: 12-24VBluetooth Version: 5.0Bluetooth Transmission Distance: 5mFM Transmitting Frequency: 87.5-108MHzDisplay Color: Red LightSize Details: 9.8cm x 6.8cm x 4.3cm or 3.86" x 2.68" x 1.69" (Approx.)Notes:Please note that the FM transmitter can be used in cars with auto radio and cigarette cigarette ignition device for power supply.Please note that the FM transmitter is suitable for charging all kinds of smartphones.Due to the light and the screen setting difference, the item's color may slightly differs from the pictures.Please allow slight dimension difference due to the manual measurement.Package Includes:1 X FM Transmitter