Cordless Door Bell: Wireless Doorbell 1 switch RC and 1 bell alarm with flashlight Wireless easy mounting design never effects your inner decoration and makes the doorbell anywhere you like Intelligent flashlight design brings convenience to the hearing handicapped Build in anti-interference system – prevents the doorbell from interferences outside or between neighbors Easy to install with double-side sticker at the back of the remote control Suitable for house, office, shops, hotels, tire building and factory, etc. For receiver: Powered by 2 pieces of 1.50 V AA batteries to be placed in the slot of the receiver (not included) For remote control: Powered by 1 piece of 12V 23A battery (Included) Remote control ranges up to 150m in open air. Package Include: Door bell Remote control Note: Battery Not Included http://yumedeals.com/index.php?route=pr ... uct_id=726