New KR-TP20 One set included 1 keyboard 20 pager

One set included 1 keyboard 20 pager One keypad transmitter can work with 999pcs pager in max. Shell Material: High-quality polycarbonate Power: Built-in 3.7V polymer lithium battery Prompt mode: Sound, Vibration, Flicker Color: Dark red Low power Prompt: Yes Can hang on the neck Working voltage: 7.5V Dimension:31*8*4cm