【Voltage Detection】Monitor your car battery voltage in real-time for enhanced safety and vehicle maintenance. 【Bluetooth-compatible 5.0 Technology】Enjoy seamless connectivity and high-quality audio streaming with advanced Bluetooth-compatible 5.0. 【Hands-Free Calling】Built-in microphone supports safe, hands-free phone conversations while driving. 【Multi-Format Music Playback】Supports MP3, WMA, and WAV formats for versatile audio enjoyment. 【Dual USB Charging】Features two USB ports (5V/2.1A and 5V/1A) to charge your devices on the go. 【FM Transmitter】Broadcast your music to any FM frequency between 87.5MHz-108.0MHz for crystal-clear sound through your car speakers. 【Wide Compatibility】Supports U disk and TF card storage up to 32GB for extensive music libraries. Specifications: Model: G32 Net Weight: 30.5g Product Dimensions: 3.9*5*7.5cm Bluetooth-compatible Version: 5.0 with A2DP support Operating Voltage: 12V~24V (9-26V range) USB Output: Port 1 - 5V/2.1A, Port 2 - 5V/1A Supported Formats: MP3/WMA/WAV Storage Support: U disk/TF card (1-32GB) Operating Temperature: 0-50℃ Sensitivity: -42DB±3DB Working Current: 45mA (max) Standby Current: 25mA (max) Frequency Range: 2.402-2.480GHz RF Output: 4dBm Battery Voltage Accuracy: ±1V Signal-to-Noise Ratio: >60dB Distortion: <0.1% Frequency Response: 20Hz-20KHz Channel Separation: >60dB Bluetooth-compatible Range: Up to 10m Microphone Range: 0.5-1m FM Transmission Range: 87.5MHz-108.0MHz