Please note: This ONO3 Pro remote control is not compatible with every brand of Mini Projector. It is intended solely for use with the brands and models listed in the title. This ONO3 Pro replacement remote does not come with batteries or instructions. Please have 2 AAA batteries ready on your own. This ONO3 Pro replacement remote requires no setup. Simply insert the battery and it will function normally. It matches the original factory size exactly ( 1:1 ), making replacement straightforward and achievable in roughly 1-2 minutes