Night Vision VOX Safety Take Care Baby Monitor 2 Way Audio Talking Lullabies

Specification
GENERAL:
1,Transmission Frequency: ISM 2400~2483.5 MHz
2,Transmission Power: 17dBm
3,Unobstructed Effective Range: 160ft/50m indoor/850ft/260m outdoor, line of sight
4,Spread Spectrum: AFH & TDMA
5,Modulation Mode: GFSK
6,Operating Temperature: 14 ~ 122° Fahrenheit/- 10 ~ +50° Celsius
7,Operating Humidity: