Features: 1. Small and exquisite, easy to use. 2. Colorful atmosphere lights make driving more romantic. 3. Compatible with Bluetooth, U disk (up to 32G) audio connection. 4. Support power-off memory playback function. 5. High-resolution, high-performance stereo, lossless music playback. 6. Bluetooth version 5.0 supports Bluetooth audio playback and Bluetooth hands-free calling. 7. 22.5W Super fast charging/QC3.0+PD20W fast charging, charging while listening to songs. 8. The voice navigation function supports 99% of map applications. 9. Full-frequency FM wireless transmission technology, which can directly read audio files on Bluetooth mobile phones/U disks. 10. Multiple protections such as over-current, over-charge, over-temperature, over-voltage, short-circuit protection, and anti-combustion make it safer to use. 11. It is suitable for all cars, SUVs and trucks with a voltage of 12V-24V. Specifications: Model: C16 Material: ABS Color number of atmosphere lights: 7+1 Bluetooth version: Bluetooth 5.0 Effective distance: 10m Charging interface: USB 22.5W Super fast charge+Type-C 3.1A 22.5 interface: 5V4.5A, 9V2.5A, 12V1.9A Type-C interface: 5V3A, 9V1.7A, 12V1.3A Working Voltage: 12V-24V File type: MP3/APE/FLAC Transmitting frequency: 87.5MHz-108.0MHz Functions: U disk, FM, Bluetooth music,voice navigation, dual USB fast charging, hands-free calling, etc. Applicable models: 12V-24V cars, SUVs, trucks Size: 5 x 4.5 x 8.7 cm Model: C17 Material: ABS Color number of atmosphere lights: 7+1 Bluetooth version: Bluetooth 5.0 Effective distance: 10m Charging interface: USB QC3.0 fast charge+Type-C PD20W fast charge QC3.0 interface: 5V3.6A, 9V2A, 12V1.5A Type-C interface: 5V4A, 9V2.3A, 12V1.7A Working Voltage: 12V-24V File type: MP3/APE/FLAC Transmitting frequency: 87.5MHz-108.0MHz Functions: U disk, FM, Bluetooth music,voice navigation, dual USB fast charging, hands-free calling, etc. Applicable models: 12V-24V cars, SUVs, trucks Size: 5 x 4.5 x 8.7 cm Note 1. Since different computers display different colors, the colors of actual items may be slightly different from the above images. 2. Please allow 1-2 cm to be different due to manual measurement. Thank you for your understanding Thank you for your support!Welcome to buy from us!You can contact with us to get more detail of the goods .we will be ready to reply you ASAP.