1. High-temperature insulation, battery internal liquid can withstand high-temperature circuit breaker. 2. Start the vehicle at any time, so that the battery to maintain a strong power start at any time. 3. Compatible with most vehicles (except car which can not be changed battery car which can not be changed battery; car which can be alarm; car without spare mechanical key is not recommended for installation). 4. No need to change the vehicle line, the installation does not damage the vehicle line, wireless short circuit and wiring, can be restored at any time. 5. Double magnetic keep zero power consumption after conduction. The memory relay does not supply power in time, the relay is still on state, keep the memory state does not change. Material: plastic+metal colour: As Shown Package Contents: 1 x switch 2 x remote control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.