Practical and reliable Ideal for use as an alarm device for those who need help quickly, such as the elderly, children, the disabled, pregnant women or the sick. Just press the call button for timely and considerate care without yelling. It can also be used as a doorbell. Long range Up to 180 meters range in open areas (walls and other objects reduce the range). By using 16-bit coding to remove interference from other devices, you can work virtually anywhere in your home. More alarm options 45 sounds (36 melody sounds and 9 alarm sounds) to choose from and three alarm options (Sound + Light, Sound only, Light only). 3 adjustable volume, max.110dB, ideal for the elderly. No power switch is provided to avoid forgetting to turn it on. This can lead to an important distress call. (If you are not going to use the device for a long time, remove the batteries to save the life of the battery). Practical placement The waterproof transmitter can be worn as a pendant or on the bed. The receiver can be wall-mounted, freestanding on the desk or carried in the carer's pocket. Low battery indicator 1, No operation, but the device indicator flashes or makes an unusual sound. Please replace the battery. 2, The connection between the transmitter and receiver may lose contact after replacing the battery. The elements are not defective. They just have to be paired manually to fix the problem. Receiver is powered by 3 x AAA batteries (not included); Transmitter with 1 x button cell (included). Product s Color: 1 transmitter 1 receiver Specifications: Color: White Energy: battery Pairing instructions: 1. Press the " Signal " button on the receiver until the LED lights up2. Press the red call button once to establish a connection with the recipient. (Be sure to remove the battery compartment cover by opening the call button with the supplied screwdriver)3. Red light flashes to confirm successful pairing4. The receiver will automatically exit pairing mode5. The system is ready for operation. Repeat the process if the call button and recipient lose connection Package include: 1 x transmitter 1 x receiver 100% money-back guarantee: If there is any quality or usage problem, please contact us, we will send you a replacement, refund or answer within 24 hours. Risk-free purchase Troubleshooting steps: 1, there is no operation, but the receiver or transmitter LED light indicator keeps flashing, or the receiver makes an abnormal sound. This means that the battery is weak. Please replace the batteries. 2, The connection between the transmitter and receiver may lose contact after replacing the battery. The elements are not defective. They just need to be manually paired to fix the problem. Warm tips No power switch is designed in such a way that forgetting to switch on is avoided and an emergency call is missing. When not in use, please remove the batteries to protect the battery life. If you need the manual ebook in your national language, please send us an e-mail and state the order number. We will then send it to you.