wireless Bluetooth remote control BTR200 is compatible with the most dash camera which with Wi-Fi function. But the customized function of two buttons on the side to set different functions is only compatible with A229 Pro or A229 Plus or VS1 or A139 or A139 Pro dashcam for now. The firmware of A229 Pro or A229 Plus should be updated to version V1.3, VS1 to version V1.1, A139 Pro to version V1.2, A139 to version V1.9. You can find the newest firmware on official website. And it will soon support pairing with more VlOFO dashcam models. Easy to UseWith one simple press on the remote, important videos can be saved and locked without needing to take your eyes off the road, which lets you drive safer. Easy to InstallThe remote control is very dexterous, only 10g, with the adhesive on the back, you can choose to stick it on a suitable location on your dashboard, the small body would keep the original appearance inside your car. Simple PairingPower on the camera and then press the video lock button on the remote control for 3 seconds to pair the camera, the LED indicator on the remote will turns blue if get paired successfully. Free Extra Battery IncludedThere is a free extra battery in the package, you can install it when the first battery runs out. Batteries are not able to be charged. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.