Your office desk. Your box room-slash-home-office. A treehouse at the bottom of the garden. With a little imagination (and some cutting-edge audio engineering), you can magically make any place a meeting space. Just by pressing the ‘On' switch. Speak2 55 is an upgrade in every sense of the word, bringing dramatically more powerful sound, ultra-advanced microphone technology, and added flexibility. All you need to bring is, well, you. Features: Microsoft Teams Button Features: Noise Cancellation Features: Full-duplex Features: Acoustic Echo Cancellation (AEC) Features: USB Charging USB: Yes Microphone: Yes Number of Batteries Supported: 2 Battery Capacity: 900 mAh Battery Chemistry: Lithium Ion (Li-Ion) Power Source: Battery Product Color: Dark Gray Height: 1.3' Weight (Approximate): 9.88 oz