Universal 48V microphone phantom power supply, stable and noise-free, plug and play. Built-in lithium battery is rechargeable, and battery voltage is more stable. Large-capacity 2200mAh battery, can last about 9 hours. 48V phantom power supply improves microphone pickup sound, the recording is clean, clear and low-noise, the performance is strong, the effect is good, and original-sound is lossless output is improved. Built-in low-pass filter circuit design fully filters out external audio equipment interference noise. Stable voltage doubler filter circuit effectively filters out AC signal interference. Improved shielding technology, separate design of power supply and power supply, external power supply with shielding magnetic ring to isolate AC electromagnetic waves from DC power supply, ensuring that signal is not interfered with. Color: Black Material: Metal Package Contents: 1 * Phantom power 1 * Charging cable 1 * 3.5mm shielded cable 1 * XLR cable Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.