Ambient light and LED display: When the power is turned on, the ambient light turns blue, making it easier to use in darker places in the car, creating a cheerful atmosphere. On the LED display, you can easily and conveniently display volume, car voltage and FM frequency. Dual USB Ports and Safe Charging: Supports charging 2 devices with overcharge protection at the same time. One USB port (5 V/1 A) with music notation can read USB memory sticks, while a second USB charging port (5 V/2.4 A) can efficiently charge your smart devices. Enjoy stereo streaming in the car while charging your smartphone. Hands-free calling: With this wireless device, you can easily answer/reject/redial calls and drive safely. CVC technology reduces noise and wind noise, ensuring full-duplex sound quality. Easy Setup: Plug this wireless car kit into the cigarette lighter socket, tune the FM car radio to a null station (87.5-108.0 MHz) and set the FM transmitter to the same station. Pair with your phone via Bluetooth 4.2 and enjoy your music. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!