Wireless audio content transmission device

To activate cash on delivery, enter the address and choose the company fastlo for shipping, then select cash on delivery. NDK-100 device dedicated to wireless ceiling speakers NA-6WS Device specifications for wireless ceiling speaker amplifier Product type: audio content transmitter device. Accessories: auxiliary input, USB, Bluetooth, microphone input, remote control. Microphone preference: the frequency response ranges from about 20 Hz to 20 kHz. Display method: digital channel. Signal-to-noise ratio: always ≤ 85 decibels. Power supply: AC: from 220 to 240 V, 50 to 60 Hz. DC: from 9 V - 12 V, and 1500 mA. Estimated coverage: (outdoor space), about 80 square meters. Indoor space: approximately 50 meters. Unit dimensions: 305 X 200 X 65 mm.