Philips SCD498 DECT baby monitor. Battery type: AAA, Battery life (max): 24 h, Battery technology: Nickel–Metal Hydride (NiMH). Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -20 - 60 °C. Charger: Charging base for parent unit, DFU / User manual: English French Spanish German Dutch Italian Portuguese Greek Swedish Norwegian Finnish Danish. F-box dimensions: 305 x 187 x 135 mm. Maximum operating distance: 300 m