waterproof singcall bracelet reciver ( with shack function)
product size: 48 x 25 x25mm,
with UV painting, black color
Screen: OLED screen,
with 2 buttons,
display type: 1 group 3/5 digits
input power: 100-240V AC, 50/60 Hz,
output power: DC 5V/0.1A,
Lithium battery 3.7V,
battery capacity: 180MAh
note time: 01-15 group times
receiving sensitivity: -114dbm,
working frequency: 433.92Mhz,
Strong EMC anti-interference,
support 500pcs of calling senders
standby time: 2-3 days
working distance: within 120m
