*Two channels *Sound-level lights *Battery-low indicators *Charging base included *Battery back-up option Two channel digital Wireless baby phone temperature display Main Features:*Adopt frequency hopping spread spectrum(FHSS),Anti-interference and sound clarity*Work Frequency Band: 900MHZ ISM,905—925MHZ*Long distance transmission,200-300 meters in the open field*Support 1 receiver matching 2 ...