◆As a car charger： 2 in 1 USB and Type-C dual port design, 5V / 2.1A, 5V / 1.0A output.It can quickly and easily charge two mobile phones at the same time, which is very convenient for your travel. ◆As Bluetooth wireless earbuds： CSR 4.2 Bluetooth technology: higher data transmission efficiency and stable signal, enjoy high-quality sound and communication.Intelligent and safe driving: It is very convenient for you to listen to music, answer and hang up calls while driving. ◆Answer key, pause key, open/key multi-function,One-button operation, simple and convenient. ◆Bluetooth V4.2 makes data transmission more efficient, lower power consumption,The signal is more stable, providing clear, high-quality stereo and high-definition voice quality. ◆Automatic noise reduction technology. Lanco earplugs use remote noise automatic cancellation technology. ◆Can be usedAll iOS or Android smartphones.