Features12 Way Intercom: Due to babysitting, caregivers cannot always be with the patient when they need help. Intercoms are designed for them to seek help or communicate, and they no longer need to shout to get someone's attention. 2Protecting Pregnant Women And Babies: Because intercom systems do not produce radiation like cell phones, they can guard the health of pregnant women and babies. 3Adjustable: Portable intercom system with 2 channels A and B and 3 volume levels that can be adjusted by the user according to his preference. 4Wide Application: This clear sound quality intercom system is suitable for use in different application scenarios, such as hospitals, hotels, factories, teahouses, etc. 5Good Endurance: This intercom can be used for up to 48 hours on a single charge. It can be recharged once every two days to ensure use.SpecificationItem Type: Wireless Voice Intercom DoorbellModel: H8Material: ABSSingle Intercom Power Supply Battery: 1 Lithium Ion Battery 1800mAh ( Built In Carry )Use: Widely used in homes, offices, laboratory environments, medical, etc.Basic Parameters:Operating Temperature: Approx. -20-55 / -4-131Transmission Distance: 1000m In The Empty Space; 20~50m Across The WallWorking Frequency: 410M - 490MSound Adjustment: Three Gears AdjustablePackage List2 x Intercom2 x Charging Base2 x Charging Cable (Random Color)1 x Manual