[Quick charge and 3 USB ports]: The NX12 Bluetooth car adapter is designed with 2 fast charging ports (PD18WQC3.0) and a standard USB port. PD 18W and QC 3.0 USB ports can provide 4 times faster speed than ordinary charging ports. Equipped with 3 USB ports, you will not encounter problems with insufficient chargers or slow charging of multiple devices. $[Hi-Fi Deep Bass Music Player]: The FM transmitter supports your playlist and will not distort the original signal from smart phones, MP3, LG and more Bluetooth devices. Use the music sound effect button b to greatly enhance dance music, DJ, RAP and light music. It can also support music in MP3 / WMA / WAV format from a USB flash drive. $[Bluetooth V5.0 Siri Google Assistant]: Bluetooth V5.0 provides a more stable and faster connection without intermittent. The Nulaxy Bluetooth FM transmitter supports Siri/Google Assistant to make calls, send text messages or get driving directions. $[Hands-free call]: Built-in noise reduction (CVC) design, which can reduce the noise of the external environment and make hands-free calls clearer. One-click: answer/reject/raise hand/call back, allowing you to seamlessly switch between incoming calls and music. $[Wide compatibility]: This car Bluetooth adapter can be used with any Bluetooth devices, such as iPad, iPhone, iPod, HTC, Galaxy, Sony, MP3 players, tablets and Android smartphones. It is suitable for 12V-24V cars and trucks.