Specifications: It can stream music from TF card to car stereo via FM radio signal. It can transfer music from your phone to your car stereo via Bluetooth. 90 degrees rotating shaft, free to adjust the visual angle. Item Name: bluetooth-compatible FM Transmitter Material: Plastic + Electronic Components Bluetooth Distance: 5M Microphone Effective Distance: 0.5-2 Meters Working Voltage: 5V Working Current: 45mA Size: 7.5cm x 2.5cm/2.95" x 0.98" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x bluetooth-compatible FM Transmitter 1 x User Manual Ludlz Car Bluetooth Wireless Radio Adapter Handsfree Music MP3 Player Streams music from TF card to car stereo via FM radio signal Transfers music from your phone to car stereo via Bluetooth Features a 90 degrees rotating shaft for adjustable visual angle Made from durable plastic and electronic components