`- Speakerphone size: (Ø) 120 x (h) 28mm
- Speakerphone weight: 220 g / 7.76 oz
- Connectivity: USB 2.0 & Bluetooth
- USB cable length: 2.6 feet / 0.8 meter
- Touch Buttons: ower,Bluetooth, Call answer, Call hangup, Volume up, Volume down, Mute, Voice assistant/Teams
- Compatible with T53,T53W,T54W and T57W phones if running V85 firmware