【2018 series latest model | proprietary adoption standard】 ● SRUIK transmitter series latest! minimum! The lightest model! Compared with the conventional FM transmitter, the weight is only 34 grams lightweight design, achieving overwhelming compact size! ● It corresponds to the optimum FM frequency "76.0 ~ 90.0 Mhz" for use in Japan. <br> • 【Three music playback modes | Two USB ports installed】 ● Through Bluetooth. Via Micro SD card (Supports MP3, WMA, WAV, FLAC, ACC format). Through a USB flash disk (maximum capacity: 64 GB). ● Total output includes two 3.1A USB charge ports (one with USB disk function) As a cigar socket, you can quickly charge smartphones, tablets and so on even in the car. <br> • [High-quality chip | Next generation adoption Bluetooth 4.2] Adopt high-quality chips equipped with the latest version Bluetooth 4.2 and continuously reproduce high-quality sounds like continuous playback of CD sound sources more consistently! By further "Noise Reduction (noise reduction) function" than the older version, I am out of the noise stress which is often found in FM equipment, realizing a clear sound with high sound quality. Because it is built in microphone, handsfree calling while driving is even more secure! <br> • [Wide compatibility] Smartphones and tablets such as iPhone 6s, 6s plus, iPhone 7, 7 Plus, iPhone 8, X, Samsung, LG, HTC, Sony, Windows, iOS, Android, iPad, iPod, MP3 or other Bluetooth We support everything we support. SRUIK FM transmitter is applicable to vehicles equipped with Bluetooth function (voltage &lt;25 V). Applicable car type: With cigar socket, 12v, 24v compatible car. "Truck Accessories Automotive Goods"