Purchased from a used goods store in December 2025, but was hardly used. Operation confirmed. Everything is as shown in the photos. There are small scratches as shown in the photos. Features: The M48 phantom power supply can provide 48V power to condenser microphones and active direct boxes. It can be powered by batteries or the included AC power adapter. Regarding the battery compartment lid, the tab must be pressed with a finger to lock it in place after installation. Product Features: Power for your equipment Provides stable power to various equipment such as microphones and DIs that require phantom power. Supplies the necessary voltage reliably Maximizes the performance of your equipment with a full 48V voltage. Simple and reliable No complicated operations required. Simple design, just connect and turn on the power. Powered by AC adapter or 9V battery Flexible power options for both studio and on-the-go use. With power indicator Peace of mind with an LED display that allows you to check the power status at a glance. Function List: Ideal for condenser microphones and equipment requiring 48V phantom power Equipped with XLR input/output terminals Transparent, noise-free operation Powered by the included AC adapter or 9V battery Indicator for power on/low battery Built-Like-A-Tank™ design for long-term use and peace of mind