4.5*3.5*7cm (Due to manual measurement, there will be an error of 1-3cm.)
Support automatic voltage display: low voltage reminder
Support hands-free calling: compatible with Bluetooth hands-free
Built-in microphone: hands-free call car kit
Bluetooth compatible FM transmitter: transmitter FM compatible with Bluetooth function:
1. Precise structural design.
2. USB 3.1A charger, Bluetooth compatible with version 5.0.
3. Listening charges.
4. Support power and storage functions.
5. The frequency can be displayed on the screen.
6. Support Bluetooth compatible/USB player and Bluetooth compatible hands-free communication
7. This product adopts FM full-frequency wireless transmission technology, which can directly read the audio files of the mobile phone's Bluetooth compatible/U disk. Support Bluetooth compatible audio playback and Bluetooth compatible hands-free calling. Support smart APP function, lossless high-quality audio decoding; multi-function MP3 USB car charging function.
8. Noise reduction function, built-in noise reduction circuit to make the sound clearer.