Features 1. 36W dual fast charge high-speed output, charges 3 devices simultaneously, intelligently identifies optimal current, and helps prevent battery damage. 2. Enhanced Bluetooth calling with high-sensitivity microphone and 360-degree audio playback. 3. Rhythm-responsive ambient lighting with soft illumination; enjoy immersive 360-degree bass sound when driving at night. 4. Bluetooth 5.0 chip for faster response, lower power consumption, and a more stable wireless connection; upgraded smart chip with automatic power-off during charging. 5. Safe and efficient charging with comprehensive protection including over-current, over-temperature, over-voltage, and short-circuit protection via CX8810 power management. 6. Power-off memory function; resumes playback from the last played track and channel after restart. 7. Intelligent voltage detection for safer driving; automatically monitors car battery voltage upon startup. 8. One-touch control for hands-free Bluetooth calling. Specification 1. Material: ABS 2. Working voltage: 12-24V 3. Output current: 5V1A + QC3.0 + PD 20W 4. Bluetooth version: V5.0 5. Frequency range: 87.5-108 MHz