GZ07 Bluetooth-compatible Car Charger Voltage Display MP3 Player Dual Type-C + USB Charging Adapter 【Voltage Detection】This car charger features built-in voltage detection capabilities to monitor your vehicle's electrical system. 【Bluetooth-compatible 5.3 Technology】Equipped with the latest Bluetooth-compatible 5.3 for stable and efficient wireless connectivity up to 10 meters. 【Hands-Free Calling】Integrated microphone supports safe,hands-free Bluetooth-compatible calling while driving. 【High-Fidelity Music Playback】Supports A2DP for direct streaming of high-quality audio from your smartphone. 【Versatile Audio Support】Compatible with U-disk playback,supporting various audio formats including MP3,WMA,WAV,FLAC,and APE for lossless sound quality. 【Multiple Protection Features】Incorporates overvoltage,short-circuit,overcurrent,and overtemperature protection for enhanced safety. Specifications: Model: GZ07 Net Weight: 31.6g Product Dimensions: 5.62 x 4.3 x 7.46cm Bluetooth-compatible Version: 5.3 Working Voltage: 12-24V Voltage Limit: 9-26V Dual PD Output: 5V/3.1A FM Transmission Frequency: 87.5MHz-108.0MHz Bluetooth-compatible Range: 10 meters U-disk Support: 1G-32G Package included: 1 x Bluetooth-compatible Car Charger 1 x English Manual