HOS 2 wireless phone

Hosmart HY-810 – 10-channel intercom
Range: up to 800 meters in ideal conditions
Channels: 10
Frequency range: 462.6250 – 467.6125 MHz
Features: group call, continuous monitoring up to 24 hours,
compatibility with two-way radios
Power supply: USB adapter (5V 1A) or portable battery
Dimensions: approximately 19 x 12.5 x 4 cm