K-Speak Features: Fast setup, flexible configuration — Fast setup and installation — Connect via AUX, Bluetooth, Bluetooth dongle or USB Can be connected to the K–180Mini via USB for seamless full–room audio and video Two K–Speak speakerphones can be connected, to cover larger tables Optional wireless charging — Reduces tabletop clutter Crystal–clear sound — 6–element microphone with voice pickup radius of 5m (16.4 ft) Noise and echo cancelation Up to 8 hours operation Specifications: PORTS 1 AUX In/Out: On a 3.5mm mini jack 1 Audio In/Out + 5V/2A charging: On a USB–C connector Bluetooth: BT4.2+EDR MICROPHONE Type: 6–element Microphone array Pickup Distance: Up to 5 meters Frequency: 150Hz~8kHz Sensitivity: –38dBV Signal-to-noise Ratio: 65dB SPEAKER Maximum Sound Pressure Level: 80dB SPL@1m Distortion: ≦4% @150Hz~16kHz Signal-to-noise Ratio: ≥75dB@1m Frequency Response: 150Hz~16kHz CONTROLS Buttons: Power, answer/hang up, mute, Bluetooth, volume +, volume — Indicator lights: Power, Volume, Bluetooth, Mute, Answer/Hang up Modes: Music mode/caCl mode (under Bluetooth mode) BATTERY Battery Capacity: 7.4V/2200mAh Charging Requirement: Wired: 5V, 1.5A, Wireless: 5W Battery Life on a Single Charge: Up to 8 hours ENVIRONMENTAL CONDITIONS Operating Temperature: –5° to +40°C (23° to 104°F) Storage Temperature: –20° to +60°C (–4° to 140°F) Humidity: 10% to 90%, RHL non–condensing Altitude: Below 5000 meters REGULATORY COMPLIANCE (STANDARDS COMPLIANCE) Safety: CE, FCC Environmental: RoHs, WEEE GENERAL Net Dimensions (Diameter, H): 12cm x 3.5cm (4.7" x 1.4") Shipping Dimensions (W, D, H): 15.8cm x 22.2cm x 4.8cm (6.2" x 8.7" x 1.9") Net Weight: 0.4kg (0.9lbs) approx Shipping Weight: 0.71kg (1.6lbs) approx ACCESSORIES Included: 1 USB Type–C cable, 1 AUX 3.5mm cable, 1 USB dongle PRODUCT DIMENSIONS 12.00cm x 12.00cm x 3.50cm (4.72" x 4.72" x 1.38" ) W, D, H PRODUCT WEIGHT 0.4kg (0.9lbs) approx. SHIPPING DIMENSIONS 15.80cm x 22.20cm x 4.80cm (6.22" x 8.74" x 1.89" ) W, D, H SHIPPING WEIGHT 0.7kg (1.6lbs) approx.