L019 Tuya App WiFi Doorbell Alarm System Home Intelligent Wireless Doorbell, 1 Transmitter+1 Receiver

• Optional 58 Ringtones: Choose your favorite ringtone based on your personal preference, making it your intimate friend
• Power-off memory function: Turn the power on again after power off, no need to re-adjust and lock the ringtone
• High-frequency transmission technology, about 80m distance
• 5 adjustable volume levels, can be mute
• The transmitter is built-in with button battery, standby for 5 years

Specifications:

• Receiver:
• Power supply: 110-220VAC
• Doorbell music: 58 pieces available
• Door bell volume: 5-level adjustable (including mute mode)
• Working current:<100mA
• Wireless frequency: 433Mhz
• Wi-Fi: IEEE802.11b/g/n
• Working temperature: -10 ~ 55 ℃
• Transmitter:
• Power supply: CR2032 button battery
• Standby current:<5uA
• Transmission distance:<80m (open area, no interference)
• Wireless frequency: 433Mhz
• Working temperature: -10 ~ 55 ℃