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3 Keys Wireless Calling System Table Service Call Button Wireless Page System Can Be Fixed on Wall
Specifications:
- Working Frequency: 433.92MHZ
- waterproof: general watering
- transmitting distance: 2500m in open space
- number of keys: 3
- Model Number: HCM830
- material: PC
- dimension: 86*43*15mm
- color: white orange
- Brand Name: freequeue
- battery: alkaline battery 12V/23A
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