Check the listing for details. Behringer HA400 Micro Amp Ultra-Compact 4-Channel Stereo Headphone Amp Powers On. Condition: For parts or not working. Listed at 9.99 USD. This ad: Behringer HA400 Micro Amp Ultra-Compact 4-Channel Stereo Headphone Amp. It has been tested to power on only. Cannot test any further and cannot guarantee any working capabilities so i therefore must sell in the ebay parts not working category. **This is NOT the correct power supply. I found an 18Volt which is pictured but the unit shows you need a 12 volt. It does power on but i have to note this in the ebay advertisement. This sale would be considered final, returns are not accepted. Condition - good cosmetically, sold as is for parts only-no returnsShipping - Shipping is calculated by location. Item is located in NJ. I ship this item same day if possible or the next business day after payment is received and verified by paypal.Please also buy with confidence- I take great pride packing correctly and shipping quickly, thank you