Feature:1. Premium Material: Caregiver pager is made of premium ABS and silicone material, wear resistant, flame retardant, eco friendly and durable.2. 38 Melodies : Wireless call button has 38 ringtones to choose from and 4 level adjustable volume, the sound is clear and loud, with LED light.3. Power Memory Function: Restart ringtone unchanged, after an unexpected power outage, emergency pager was the same setting when it restarted.4. High Sensitivity: Open barrier free reception distance is 350m, indoor practical distance more than 50m, high sensitivity, stable and reliable.5. Wide Application: Alert button can be used as the elderly call device, children call device, wake up device, nursing call device, and so on.Specification:Item Type: Caregiver PagerMaterial: ABS and siliconeUsage: Can be used as the elderly call device, children call device, wake-up device, nursing call deviceMelody: 38 melodies(4 level volume adjustable)Transmission Distance: 350M/382.76yd (barrier free), 50M/50.68yd (indoor)Transmission Frequency: 433MHzPager Size: Approx. 60x60x14mm/2.36x2.36x0.55inReceiver Size: Approx. 72x72x17mm/2.83x2.83x0.67inReceiver Plug Standard: AC100-240VTransmitter Battery Type: L1028 23A12V dry battery 200mAhx1 (built in).Package List:1 xCaregiver Pager1 x Receiver1 x StrapNote:1. Do not place the product in a corrosive, humid and hightemperature environment!2. Please supply power according to the voltage used. Other voltages may cause fire and product damage.