HB-805AB wireless doorbell home alarm security system

One pair wireless doorbell transmitting distance more than 300m (1000 feet).
The package includes one wireless doorbell transmitter (HB-805B). It is waterproof and can be installed on gate outdoor. One wireless doorbell wireless receiver (HB-805A). It is place indoor with AC power plugin.
HB-805A wireless doorbell receiver
Size: 86mm*80mm*48mm
HB-805A can be found at https://vedardalarm.com/alarm-bell-for-wireless-security-driveway-door-sensor-p-234
HB brand solar power wireless perimeter security sensor and panic button, door sensor wireless receiver. Plug-in alarm bell.
Maximum 32 wireless same brand device can be added to the wireless receiver.
Find it at https://vedardalarm.com/hb-solar-beams-m-3
4 adjustable volume levels.
35 optional classic melodies
Indicator light will flash for several seconds when the sensor is activated.
Sounds for several seconds when the sensor is activated.
Can choose different melody for different sensor.
Power supply
AC110V -220V
Working current: Static current 20mA, Alarm current 300mA
wireless frequeny: 433MHz FSK+FHSS
HB brand wireless doorbell transmitter HB-805B
size: 75mm*41mm*15mm
It is waterproof wireless doorbell, can be installed on gate outside. It can transmit to more than 300m (1000 feet) and go through steel gate, wood door and concrete wall to wireless doorbell receiver.
Maximum of 32 wireless door bell transmitters can be enrolled to one HB-805A doorbell receiver. And one HB-805B wireless doorbell transmitter can be enrolled to more HB-805A doorbell receiver.