External interface: USB 2.0 High Speed, Bluetooth, NFC (near-field radio communication), audio input terminal (RCA pin), audio output terminal (RCA pin), external speaker terminal (RCA pin) x 2, power terminal, microphone terminal, microphone terminal, input terminal, output terminal maximum power consumption 20 W (when connected with 1 microphone), 35 W (5 mics). Power supply) AC 10 V 60 Hz) radio wave Fault Standard: VCCI Class A; Operating Environment Conditions: Temperature: 32 - 104°F (0 - 40°C), Humidity: 20 - 85% (without condensation); Dimensions: Main Body: 136 (W) x 14.2 (H) x 5.3 (D) mm); Weight: 5.3 lbs (1.8 kg); Microphone: 1 lbs (0.4 kg) Compatible OS Windows 10 kg) 64bit), Windows 8.1(32bit/64bit), Windows 8(32bit/64bit), Windows 7(32bit/64bit), macOS 10.14, macOS 10.13, macOS 10.12, Mac OS X 10.11, Mac OS X 10.10, Mac OS X 10.9, USB : 2.0 and later Bluetooth Version: Ver.2.1+EDR, Supported Profiles: HFP(1.6), A2DP, Supported Codec: CVSD, mSBC, SBC, Wireless Output: Class 2, Maximum Communication Distance: 32.8 ft (10 m) NFC Compatible Android Devices Voice Guidance English, Japanese, Chinese, Korean, French, Spanish, German Accessories Power Cable (3m), USB Cable (5 m) (5m), Quick Start Guide and Other Firmware Updates (Transfer via USB from PC)