Maximum sound pressure level: 85dB Number of microphone arrays: x3 Frequency range: 150Hz ~ 7.5kHz Battery capacity: 7.4V/2200mAh Battery life on a single charge: 8 hours The omnidirectional audio pickup from up to 3 meters with intelligent noise reduction and echo cancellation algorithms make the UC SPK01M the perfect choice for medium meeting rooms. Guaranteeing seamless connection via Bluetooth, a USB cable or an audio cable this elegant speaker can be paired with up to 3 devices at the same. Weight & dimensions Weight 390 g Power USB charging Yes Battery voltage 7.4 V Technical details Volume control Buttons Microphone frequency 150 - 7500 Hz Speaker frequency range 150 - 16000 Hz Battery capacity 2200 mAh Cables included Audio (3.5mm), USB Type-A to USB Type-C Talk time 8 h Microphone in Yes Sustainability certificates ErP Compliance certificates CE, REACH, RoHS, WEEE Built-in speaker(s) Yes Bluetooth version 4.2+EDR Bluetooth Yes Product colour Black Logistics data Harmonized Sys