[Quick charge and 3 USB ports]: The NX12 Bluetooth car adapter is designed with 2 fast charging ports (PD18W&QC3.0) 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.