... waterproof. 2)Main function: Talk, Unlock 3CE Features:(WIRLESS DOORBELL WITH SD MEMORY) 1) Wireless, Range:100m, energy saving and high ... advanced tacilities,certain scaled factory and have a professional team with wonderful technique.Best service, high quality, competitive price, timely ... direct sunshine.4. Fix the unit on the wall with screws(included)5. Cover the aluminium alloy panel and ...