Self-Generating & Battery-Free Household Wireless Doorbell,2 in 1 Intelligent Remote Doorbell& Pager, Long Range Rainproof Wireless Doorbell,DIY Installation,Adjustable Volume

Doorbell Wireless Self Generating Household Long- Distance One By One Intelligent Remote Control Elderly Pager
Features:
Wireless doorbell kit: Includes everything necessary for DIY installation - 1 outdoor remote doorbell transmitter and 1 intelligent doorbell receiver, double-sided adhesive tape, and screws.
Press your finger to electricity, and self electricity without using a battery: once you press your finger, the energy will be converted into energy, and you will no longer need to worry about changing the battery for the doorbell when sending wireless signals.
Not the doorbell, but also the pager: the elderly, children and pregnant women have needs, so they can when to press it and sleep at night.
Rainproof design: not afraid of sun and rain, daily sun protection and rain protection.
Versatility: Our wireless doorbell is suitable for any occasion - apartments, townhouses, small businesses, warehouses, offices, and apartment properties. Whether you use it outdoors as your front and rear fences, in your mailbox, or indoors as a teacher, seeking helpful classroom organization and management
Product Description:
Product parameters:
Model: A88
Volume: 0-110 dB, adjustable- in three gears
Model distance: 300 meters in the open without interference
Temperature: - 20 ° C~50 ° C
Ringtones: 38 chords
Receiver: 110-240V, 50/60Hz
Wireless frequency: 433MHZ
Package:
1 * Key
1 * Ring