Product Review

Multifunctional button with stoon bc23 Bluetooth FM transmitter, you can safely and conveniently answer/ hang off/reject/redial calls with one button and you can also rotate the button to adjust frequency or skip song tracks. Dual usb charging ports charging 2 devices simultaneously for iPad, iPhone and other rechargeable devices, convenient and high efficiency. Enjoy music time with a2dp function, stream music from Bluetooth device to car's FM stereo system. Or you can plug the u disk or card reader with tf card(up to 32g) into the upper usb port to play the music. Charging and listening music simultaneously while driving. Clear sound with noise cancellation (cvc) technology and a2dp function, the wireless FM transmitter provides most crystal sound quality. Easy operation -the bc23 Bluetooth FM transmitter turns on automatically when plugged the integrated car charger into car cigarette lighter hole. -Select any of blank frequency between 87.5-108mhz -turn on car FM stereo and select the frequency same as that of the device. Adjust frequency short press "ch" key to channel setting, at this time, the channel is flashing on led display, then short rotate the multifunctional button to switch the channel from 87.5mhz to 108mhz. Specifications working voltage: 12v-24v limit voltage: 10-26v Bluetooth version: Version 4.2 Bluetooth range: Within 10m microphone effective distance: 0.5-2.0m FM frequency range: 87.5-108.0mhz package 1x Bluetooth FM transmitter with dual-port car charger 1 x user manual. And you can switch the mic ends between phone and the FM transmitter by rotating the multifunctional button. When plugging in, the red light in usb ports will light up, convenient for inserting at night. The upper usb port can read u disks or card reader with tf card(up to 32g) to transmit and play the mp3 files automatically.