Versatile This handy little car charger packs in a ton of features. Charge multiple devices at the same time with the dual USB ports. Make and receive calls using Bluetooth. Add music via the microSD slot, or listen to music via your phone or tablet over Bluetooth. Compatible with MicroSD Add a microSD to the car charger and take all your favourite music on the journey with you. A convenient way to listen to tunes on the move without worrying about data charges. Stunning design This car charger has a great form factor for all it’s features, making it easy to use, whilst also remaining compact, and in a sleek casing that will fit the look of any interior. Voice assistant wake-up Support android and IOS system one key wake-up phone voice assistant easy and safe driving on the car (Supports: Iphone,Samsung Android mobile phone) some mobile phones do not support this feature Navigation voice playback Mobile navigation comes to you via the voice playback feature. Broadcast using the one-click bluetooth connection for accurate and informative directions. Intelligent voltage detection This excellent added feature will give you peace of mind for any trip you take. Key Features Suitable for all types of vehicles Digital tube display QC3.0 fast charge output Charging for iPhone and iPad Stereo FM transmission technology U disk playback MicroSD card music playback Automatic power-off memory function Bluetooth compatible Support for siri/voice assistant function Bluetooth stereo music DSP technology Echo cancellation and noise suppression (CVC) technology during phone call Battery voltage detection Specification Working voltage: 12V-24V Output current: 5V 1A+QC3.0 Bluetooth-compatible version: Version 4.2 Transmission frequency: 87.5~108MHz Supported music format: MP3 / WMA / WAV/ APE / FLAC Bluetooth-compatible transmission distance: 10m Bluetooth-compatible microphone effective distance: 0.5-2m Applicable models: universal for models with car radio and cigarette lighter normal power supply socket Product size: 80x34x34mm/3.15x1.34x1.34\" Weight: 56g