CallToU Tuya WiFi Smart Wireless Caregiver Pager Call Button System（Need to Be Paired with CallToU Transmitter to Work） call button Can I purchase multiple sets

Can I purchase multiple sets and pair them together

Manufacturer ‎CallToU Item Weight ‎4

Has special side tone processing chip and the movement noise function can effectively improve the noise

Easy to set volume by sliding volume UP or DOWN knob

Effective control range≤10m

CallToU Tuya WiFi Smart Wireless Caregiver Pager Call Button System（Need to Be Paired with CallToU Transmitter to Work） call button Can I purchase multiple setsYou can choose the ringtone you want in the tuya program Product Description How this WIFI APP Caregiver Pager Works: When the elderly disabled kids press the call button, the hub will sound an alarm, at the same time, the smartphone APP will receive a warning alert, no matter the phone is in another city or province, you can receive a instant warning alert anywhere, and it will also record every calling record. Keep You Peace of Mind & Give You More