【Lossless Audio Quality】Experience high-fidelity sound with this car BT MP3 player, supporting multiple audio formats including MP3, WMA, WAV, FLAC, and APE for superior music playback 【Versatile Connectivity】Equipped with BT 5.3 and A2DP (Advanced Audio Distribution Profile) for seamless wireless streaming, as well as USB support for direct playback from flash drives up to 32GB 【FM Transmitter】Broadcast your music to your car's stereo system with the built-in FM transmitter, operating between 87.5MHz-108.0MHz with an effective range of 2 meters 【Car Voltage Display】Monitor your vehicle's battery health with the integrated voltage display, accurate to within ±1V 【Multi-Port Charging】Features multiple USB outputs including a 5V/2.4A Type-C port and two additional USB ports (5V/1A and 5V/2.4A) to charge your devices on the go 【Hands-Free Calling】Built-in microphone supports BT hands-free calling for safe and convenient communication while driving 【Auto-Reconnect】Automatically reconnects to paired devices and enters pairing mode upon powering on for hassle-free usage Specifications: Model: GZ03 BT Version: 5.3 Operating Voltage: 12V~24V USB Outputs: USB1 (5V/1A), USB2 (5V/2.4A), Type-C (5V/2.4A) Supported Audio Formats: MP3, WMA, WAV, FLAC, APE USB Drive Support: 1-32GB Operating Temperature: 0-50°C Sensitivity: -42dB ±3dB Working Current: 45mA (max) Standby Current: 25mA (max) Frequency Range: 2.402-2.480GHz RF Output: 4dBm Signal-to-Noise Ratio: >60dB Distortion: <0.1% Frequency Response: 20Hz-20KHz Channel Separation: >60dB BT Range: Up to 10m Microphone Range: 0.5-2m FM Transmitter Range: 87.5MHz-108.0MHz Dimensions: 4.6 x 4.23 x 7.36cm Net Weight: 29.8g