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Product Name : Telephone Extension Secrecy; Model : JL-183H
Connector Number : 2;Material : Plastic, Electronic Parts
"Overall Size : 7.8 x 5 x 1.7cm / 3.1"" x 2"" x 0.67"" (LWT);Color : White"
Net Weight : 37g
Package Content : 1 x Telephone Extension Secrecy
Made by advance electron element. It can extend one exterior circuitry into three telephones to use (control by number of extension). And it can not increase the burden of circuitry of post office, each extension can listening and talking direatly.Between every extension, they always keep their work single, they donand #39;t break into the others, and keep secret while people talking. Nbsp;