Description
This is a portable doorbell system for home, factory, hotel, market, and more. Built-in microphone and speaker allow super sound quality for dual way communication. Simple and small design, easy to useures: 【SMOOTH TRANSMISSION】 The 2.4GHz signal of the common doorbell can ensure stable and stable transmission. The effective transmission distance can reach 300 meters, which can effectively transmit signals. 【TWO-WAY INTERCOM】 When someone presses the call button on the outdoor unit, the indoor bell will ring immediately to remind you of the mini doorbell. You can press the response button to talk to people outside. 【SMOOTH SOUND】The intercom doorbell has a built-in high-sensitivity microphone and speaker, which can perform audio input and output to ensure clear and smooth sound during communication and play an effective prompt role. 【EXTRA-LONG STANDBY】 The indoor electric bell is powered by a rechargeable lithium battery, and the outdoor electric bell can use 4 AAA batteries to work for more than 6 months, which saves electricity, is environmentally friendly and durableifications: Indoor Machine Voltage Range: 5V USB Direct Power Supply Indoor Bell:Outdoor Bell Power Supply:4 x AAA Batteries(NOT Included.) Input Interface:Micro USB Wireless Frequency:467.6375MHz Transmission Distance:300m 5 ~ 50m Working Time:> 6 Months 48h Working Temperature:-20 ~ 55 ℃ Size:Approx. 100 * 60 * 16mm/ 3.9 * 2.4 * 0.6in Approx. 100 * 60 * 16mm/ 3.9 * 2.4 * 0.6in Package Size：Approx. 170 * 120 * 25mm / 6.7 * 4.7 * 1.0in Package Weight：150gPackage List: 1 * Indoor Bell 1 * Outdoor Bell 2 * Glue 1 * Screw Driver 1 * User Manual
