ขาย ออดกระดิ่งไร้สายกันน้ํา 300 m กับ 36 melodies 4 ระดับ ราคาที่ดีที่สุด

Decription: Features: 1x Transmitter, 2x Receiver Working range: 300m Music: 36 Melodies 4 volume adjustable Transmitter: 1x 12V23A battery (Included) Receiver: AV 100-220V voltage Transmitter size: 77*46*20mm Receiver size: 90*56*20mm Application: Home, office, hospital, restaurant, factory Description: 1. Operating range of 300m. Remote transmitter button is weatherproof and acceptable for outdoor use. 2. The doorbells can be used to train dogs, teachers love using it to quiet down classrooms, seniors and disabled use it as assisted living call pagers, etc. 3. Ultra-low-power design, energy saving and sustainable use. 4. Adjustable Volume, Diversified Selection. This wireless Doorbell offers 36 classic melody chimes with an adjustable 4 volume control to suit your needs. 5. LED indicator gives you a visual form of notification. An excellent feature for the hearing impaired. Included: 1x Transmitter(With Battery) 2x Receiver 1x Type 1x Set of Screws 1x Manual