Specifications: UK adapter included Equal adjustment frequency: 32 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz Input Sensitivity: 200mV, Input impedance: 47K, SNR: 80 db, Frequency response: 20 HZ-20K HZ, Distortion: less than 0.01%, Power: 8W Size: 430 * 230 * 55mm Net weight: 2kg Work voltage: AC110V and AC220V optional Color: Black and Gold optional Functions: 1. Double ten-band graphic balance adjustment 2. Fully electronic switch control circuit 3. Four sets of signal switching input, two sets of output, with EQ/through switching function 4. Large static display, with pattern sweep spectrum display when there is no signal, with high and low level HIG/LOW key control 5. Potentiometer with light, with SCAN button to control the running light or all on, potentiometer handle 6. Aluminum alloy panel 7. Two light modes: marquee and full bright. The display has only one mode of jumping up and down the whole frame, no running water or segment mode Black box versions: - Black without BT: black box without Bluetooth function - Black with BT: black box with Bluetooth function - Black with BT USB FM: black box with Bluetooth function, USB supports WMA, MP3, WAV, FLAC lossless music file formats, FM radio function, with remote. The remote control can only control U disk and FM radio, cannot control other functions. The remote has no battery, which needs to be prepared by the buyer Gold box versions: - Gold without BT: gold box without Bluetooth function - Gold with BT: gold box with Bluetooth function - Gold with BT USB FM: gold box with Bluetooth function, USB supports WMA, MP3, WAV, FLAC lossless music file formats, FM radio function, with remote. The remote control can only control U disk and FM radio, cannot control other functions. The remote has no battery, which needs to be prepared by the buyer Panel functions: 1. Left channel equalization adjustment 2. Power switch 3. Potentiometer indicator control 4. Four sets of input switching options 5. High level control 6. EQ adjustment and direct switching 7. Low level control 8. Right channel equalization adjustment Manufacture: China, Chinese Factory Homegrown products for Sale Package Included: 1*Hifi EQ665 Equalizer