Wireless portable caregiver pager easily to use and with IP55 waterproof call button. It alerts you with vibrations and sounds when someone needs you/caregiver.... -Vibrations could remind people with poor hearing, especially suitable for elderly that take care of each other.... -It is robust and lightweight and can be attached to your belt or tucked away in your pocket.... Modern stylish design... -Portable and easy installation..... Receiver with vibration,52 ringtones and LED light..... 4 Volume Levels: 25dB-110dB...... IP55 waterproof call button..... Approx. 260+feet operation range (open air)..... Indoors operation range: 50+ feet..... The transmitter requires 2 CR2016 batteries and the receiver requires 2 AAA batteries which are already included. Wireless Long Range Caregiver Pager with Call button+Portable Vibration Receiver - 52 melodies. A great way to get attention when you need it. No More yelling. Simple and Easy to use. No wiring, just put 2 AAA batteries (included) in the receiver, switch on. The pager will ring and vibrate and flash when somone presses the call button. Choose vibration and 25dB volume (4 Volume Levels from 25dB-100dB), Allows you to be available in another room or outside, and if needed, the user can page you for assistance. Great for running to the mailbox and still be in touch with the user. The transmitter/Call Button is Waterproof and Easy to Carry. Can be put in pocket or hang on your neck with lanyard(included). The operate range is 260-300ft in open area. Indoors operation range: 50-100+feet. CR2016 battery included. Everything included- nothing else to buy. Includes Vibrating Pager, Wireless Call Button, Necklace Lanyard and All batteries needed. Quality Guaranteed or Money Back! Customize and Expandable. Each wireless portable receiver can work with more buttons. Mix and match or make seperate frequencies for independent use.