Features: 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 Transmitter Frequency Response: 2.402~2.480GHz FM Transmission Frequency: 87.5-108.0Mhz Bluetooth Version: Bluetooth 5.0 Transmission Distance: Approx. 10m / 32.81ft Working Voltage: 12V-24V USB Output: QC 3.0 Memory 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. PackageList:1 x CarFMTransmitter 1 x User Manual