Features 1. Hassle-free portable monitoring. 2. Two way(talk back). 3. Temperature monitoring. 4. Built-in 8 lullabies in the camera. 5. Automatic night vision. 6. Secure, interference free, long range digital signal. 7. High contrast 2.0 inch 220 x 176 color LCD monitor. 8. Long battery life (8 hours in Vox mode). 9. Transmission Frequency: ISM 2400~2483.5 MHz. 10. Transmission Power: 17dBm. 11. Unobstructed Effective Range: 160ft/50m indoor/850ft/260m outdoor, line of sight. 12. Spread Spectrum: AFH & TDMA. 13. Modulation Mode: GFSK. 14. Monitor receiving sensitivity: -90dBm. 15. Monitor consumption current (Max.): 150mA. 16. Camera consumption current (Max.): 100mA. 17. Camera CMOS image sensor, 320 x 240 picture