Portable Bluetooth Wireless Speakerphone, 360° Noise-Cancelling Voice Pickup, Full Duplex & Automatic Gain Control, 2600mAh for up to 8-Hour Battery Life, Ideal for Meetings with up to 10 People, Four Professional-Level Microphones, Daisy Chains with Optional Second Unit, Carrying ...Portable Bluetooth Wireless Speakerphone, 360° Noise-Cancelling Voice Pickup, Full Duplex & Automatic Gain Control, 2600mAh for up to 8-Hour Battery Life, Ideal for Meetings with up to 10 People, Four Professional-Level Microphones, Daisy Chains with Optional Second Unit, Carrying Bag Included, Compatible with Windows, macOS & Linux Capture strong and natural sound at your next conference or meeting with the A15 Conference Speakerphone from Nuroum. The portable Bluetooth wireless speakerphone is ideal for meetings with up to 10 people and is equipped with four professional-level microphones boasting 32 kHz omnidirectional functionality for a 360? noise-cancelling voice pickup. The full-duplex A15 offers automatic gain control and can be daisy chained with an optional second unit for working within larger meeting spaces and more participants.