Yealink CP935W-Base is a HD touch-sensitive cordless phone system designed for small to medium conference room. Working with Yealink W70B base station, which owns the DECT radio coverage up to 50m indoors, CP935W can be provided with good and stable signal. • 4-inch multi-touch screen with 480x800 resolution • Optima HD voice, full duplex technology • Yealink Noise Proof Technology • Built-in Bluetooth 4.2 • Built-in Wi-Fi (2.4GHz/5GHz, 802.11a/b/g/n) • Wi-Fi and DECT mode switchable (Switch via one-touch) • Built-in battery • Up to 20-hour talk time (in ideal conditions) • Up to 167-hour standby time in DECT mode (in ideal conditions) • 4 hours charging time