Additional VoIP handset YEALINK W73H

Operating temperature (T-T): -10 - 50 °C | Maximum outdoor range: 300 m | Battery voltage: 3.7 V | Message-waiting indicator (MWI): Yes | Display diagonal: 4.57 cm (1.8") | Lines quantity: 2 lines | Call hold: Yes | Noise reduction: Yes | Handset dimensions (WxDxH): 144 x 48 x 21 mm | Conference call: Yes | AC adapter included: Yes | Caller ID: Yes | Product type: IP mobile phone | Redialing: Yes | AC adapter output current: 0.6 A | AC adapter output voltage: 5 V | Storage temperature (T-T): -30 - 70 °C | Input current: 0.2 A | Call forwarding: Yes | Battery capacity: 1010 mAh | Product colour: Grey | Anonymous call rejection: Yes | Compatible with: Yealink W73B base station / Yealink W73P kit | Speakerphone: Yes | Call history: Yes | Hearing aid compatibility: Yes | Package weight: 8 kg | Handset type: Wireless handset | Call transfer: Yes | Display: TFT | Input frequency: 50/60 Hz | Networking standards: IEEE 802.3af | Display resolution: 128 x 160 pixels | Mounting: Desk/Wall | AC adapter input voltage: 100 - 240 V | Rechargeable battery: Yes | Vibrating alert: No | Wi-Fi: Yes | Integrated voicemail: Yes | Frequency band: 1.9 GHz | DHCP client: Yes | Full duplex: Yes | Charger: Yes | Direct call: Yes | Operating relative humidity (H-H): 10 - 95% | Speed dialling: Yes | Call waiting: Yes | Phonebook capacity: 100 entries | Number of function keys: 6 | Device lock: Yes | Clip: Yes | Backlight display: Yes | Battery technology: Lithium-Ion (Li-Ion) | Intercom: Yes | Maximum indoor range: 50 m | Microphone mute: Yes | Keypad number of keys: 25