Signal to noise ratio: 80dB Number of microphone arrays: x6 Voice pickup range: 5m (radius) The omnidirectional audio pickup from up to 5 meters with intelligent noise reduction and echo cancellation algorithms make the UC SPK01L the perfect choice for large meeting rooms. Guaranteeing seamless connection via Bluetooth, a USB cable or an audio cable this sleek looking speaker can be paired with up to 3 devices at the same. Weight & dimensions Weight 400 g Power USB charging Yes Battery voltage 7.4 V Technical details Volume control Buttons Microphone frequency 150 - 8000 Hz Speaker frequency range 150 - 16000 Hz Battery capacity 2200 mAh Cables included AUX, USB Type-A to USB Type-C Talk time 8 h Microphone in Yes Built-in speaker(s) Yes Bluetooth version 4.2+EDR Bluetooth Yes Product colour Black, Grey Logistics data Harmonized System (HS) code 85182200