Specifications Manufacturer: iKnopka Warranty period: 12 months Weight without packaging, kg: 0.06 Article: APE6600-1xx iKnopka APE6600 Pager Receiver The signal is received directly from the client's button - the device does not require an additional transmitter. Vibration or sound signal notification, automatic or manual power saving options, 999 numbers in memory, LCD display with a sleep option to save energy. Display up to 10 numbers simultaneously. The interior of the device is protected from moisture and light impacts. Specifications: Category: Wrist Pager Dimensions: 55mm X 45mm X 18mm Decoding Type: Registration Method Display: 1 digit Power Battery: AAA DC1.5V 600mA Reception Sensitivity: -180dbm Frequency: 433 Mhz Displays: 999 options Sound Category: Class 2 Display Time: 1 sec – 60 sec