特点1。坚固的外壳,由冷轧钢与粉末涂层建造。2.手机顶部有一个突出的避雨处,以避免积水。3.防破坏手机与内部钢挂绳和环提供了额外的安全性的手机线。4.带簧片开关的磁钩开关。5.热线电话。 When handset is picked up, and press the button, the phone will dial the hotline number automatically. 6.Optional noise-canceling microphone available. 7.Wall mounted, Simple installation. 8.Weather proof protection IP65. 9.Connection: RJ11 screw terminal pair cable. 10.Multiple color available. 11.Self-made telephone spare part available. 12.CE, FCC, RoHS, ISO9001 compliant.