Switchable attenuation options of -20dB and -40dB to enhance the operating range of the Direct box, ensuring optimal signal quality. Phantom power capability ranging from 18 to 48 Volts DC, allowing for versatile power options. Multiple input options including a 1/4 Jack socket and unbalanced XLR socket for receiving signals. Battery switch and indicator for easy management of battery power, with automatic switching between battery and phantom power. Load impedance greater than 600 Ω, ensuring compatibility with a wide range of audio equipment. This Direct box is designed for professional audio applications, providing flexibility and reliability. The attenuation feature allows users to manage signal levels effectively, while the phantom power ensures consistent performance. With both 1/4 Jack and XLR inputs, it accommodates various signal sources. The battery indicator helps monitor power status, making it ideal for live performances and studio use. Color: Black Material: plastic Package Contents: 1*Audio Isolator(Without 1*9V battery)