Vogtec T4, a versatile and user-friendly phone designed for seamless communication. Running on Android OS, it offers excellent compatibility, stability, and expandability. The T4 supports fast Wi-Fi (802.11 a/c/b/g/n) with smooth roaming under the same SSID APs. Easy to set up with Vogtec's online DIY cloud system or automatic provisioning, it also supports Over-the-Air (FoTA) updates for hassle-free firmware upgrades. Features include a 3.5mm earphone port, vibration alerts, and support for SIP video intercom/doorbell. The T4 has a replaceable battery and is available in white and black.