Feature:1. Fast Charging: Supports PD and QC3.0 fast charging to efficiently meet charging needs, this bluetooth car adapter will largely simplify your use of devices.2. Bluetooth Connection: Using Bluetooth V5.0 for achieve stable and lossless audio playback and hands free calls, making your driving on road much easier.3. Multifunctional Design: Supports USB, memory card(not included), USB flash drive playback, and is compatible with multiple audio formats.4. Power Off Memory Function: Automatic reconnection, memory frequency, restart to continue playing disconnected songs.5. Widely Compatible: Suitable for most car models on the market, compatible with for Android and for iOS X system phones.Specification:Item Type: Car FM TransmitterFrequency Response: 2.402~2.480GHzFM Transmission Frequency: 87.5-108.0MhzBluetooth Version: Bluetooth 5.0Transmission Distance: Approx. 10m / 32.81ftWorking Voltage: 12V-24VUSB Output: QC 3.0Memory Card Slot: Supports up to 32G, which is not included. Applicable Products: Compatible with phones and tablets such as for iOS X, for Xiaomi, for HTC, for Nokia, supporting charging for all phones. .Package List:1 xCar FM Transmitter1 x User Manual