【Describe】 The Caregiver pager, the Idea is for Both Caregiver and Patient/Elderly/Resident/disabled person while Still calling for Help at home. Not need to Yell to Get Someone’s Attention. Portable Pagers Batteries Included. It is convenient for the Caregiver Portable. It can be taken anywhere such as in Pocket/in Bag/Outside/Garden/Upstair/Downstair. Operating Range is 500+ Feet in the open Area. SOS Call Button is Easy Carry. It can be Put in a Pocket or Hang on the neck as a Pendant. Neck Strap included. Push Call Button is Waterproof. Acceptable for Fixed in Bedside/Washing Room. The Button transmitter requires a 23A 12V Alkaline battery which is already included and not rechargeable. 【Feature】 Features Modern & stylish design Easy installation Approx. 500+ft operation range (open air) The working voltage of the Receiver:110-260V Button Waterproof Standard: IPX5 Receiver :4 Levels of volume from 0dB to 110dB 55 Ringtones.The default ringtone is “Ding-Dong” Battery in Button Transmitter:12V 23A Alkaline Battery The battery in Portable Pager: AAA Battery Package Dimensions: 4.4 x 3.6 x 3.5 inches 【Package】 1 x Receiver 2 x Transmitter 2 x Double Sided Adhesive Tape 1 x User Manual 2 x 12V 23A Battery 3 x AAA Battery