This product is specially designed to receive European standard Digital Audio Broadcasting (DAB), low cost and low power consumption Equipped with radio frequency amplification circuit and super receiving ability, it is compatible with most Android navigation systems Supports most Android navigation systems above Android 4.4.4. Some vehicles with deep Android development may not be suitable The product is a DAB receiver used for car android system Features: APP touch panel control Support auto stations searching Support DLS & slide-show function Support channel list Signal strength display Support favorite station setting Standard USB interface Antenna interface SMA (5V output) Specifications: Material: ABS Size: 20*50mm Voltage: 5V Power: 0.1W Signal-to-noise ratio: -102dB Interface: USB interface Package included: 1 x DAB Receiver 1 x Antenna 1 x English User Manual Other items not included