GF-808 Wired Non-visual Single-family Intercom DoorbellFunctions: 1. Two way intercom and unlock function. 2. Two core wire connection, four core wire connection with unlock. 3. The door machine is surface mounted design and easy to install. 4. Using new ABS plastic, durable. 5. There is an excellent side tone cancellation circuit, and the intercom sound is clear. 6. Effective intercom distance is more than 100 meters. 7. Easy installation, users can install it by themselves. Power parameters: 1. Audio

Carton Size 42cm * 42cm * 52cm / 16

Carton Size 55cm * 54cm * 33cm / 21

Built-in battery: 900mAh

Vertical heat dissipation: Tool-free

Only 5 grams of activation force are required to produce ink marks

Micro-shooting: Three-speed design with open feet to meet the requirements of different shooting angles

Most of computers and high definition televisions usually provide USB port

high heat conversion rate and fast heating

and window cleaner

Lightweight and integrated

One Package Size 32cm * 24cm * 1cm / 12

Package Include Package Contents Ball Head Adapter x 2