Richer-R Door Bell,Voice Intercom 2.4GHz Mini Portable Dual Way WIFI Wireless Doorbell Interphone System with Built-in High Sensitivity Microphone Speaker

• 【WIFI Wireless Connection】-- Built-in WIFI module, no messy wire, 2.4GHz signal ensures stable and smooth transmission. The effective transmission distance can be up to 300 meters.
• 【Dual-Way Intercom】-- When someone press the call button on outdoor unit, the indoor bell will ring immediately for reminding you. You can press the response button to talk with the people outside.
• 【Clear and Fluent Voice】-- Built-in high sensitivity microphone and speaker, allow audio input and output, ensure clear and smooth sound effect in communication.
• 【Ultra-Long Standby】-- The Indoor bell is power supplied by rechargeable lithium battery, the outdoor bell can work for more than 6 months with 4 pcs of AAA batteries, power saving.
• 【Simple and Elegant】-- Ultra mini size ensure perfect portability and easy installation, small and nice, easy to install.Any questions,Please feel free contact us,we will provide you with high quality after-sales service

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 use. Specifications: Indoor Bell Outdoor Bell Power Supply: Rechargeable Lithium Battery 4 x AAA Batteries(NOT Included.) Input Interface: Micro USB --------------------- Wireless Frequency:467.6375MHz 467.6375MHz Transmission Distance:300m 5 ~ 50m Working Time: > 6 Months 48h Working Temperature: C-20 ~ 55 C-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: 150g Package List: 1 * Indoor Bell 1 * Outdoor Bell 1 * USB Cable 1 * Screw Driver 1 * User Manual