The Lehle P-ISO is a versatile guitar-related product that serves as an isolator and DI (Direct Injection) box. It offers the following features:

1. Isolation and DI Functionality: The Lehle P-ISO provides isolation and DI capabilities, helping eliminate ground loops and hum in your signal path.

2. No Signal Loss or Hum: It ensures that there is no loss of signal quality or introduction of hum, making it ideal for maintaining pristine audio quality.

3. High-Impedance Lehle Transformer HZ: It incorporates the high-quality Lehle Transformer HZ, designed to work with both high-impedance and low-impedance signals while preserving the instrument's tone and interaction with amplifiers.

4. Suitable for Balanced or Unbalanced Signals: It can handle both balanced and unbalanced signals, making it versatile for various audio routing needs.

5. Passive Operation: The Lehle P-ISO operates passively, meaning it doesn't require an external power supply.

6. Applications: It can be used for various purposes, such as eliminating hum, balancing signals, reamplifying, and routing clean, noise-free signals. It's particularly effective at removing background noise caused by ground loops.

7. Compact and Convenient: The unit is compact and lightweight, fitting in your pocket. making it suitable for placement below your pedalboard.

Additionally, the Lehle Transformer HZ is a specialised component that effectively eliminates hum loops and phase cancellations when connecting an instrument to multiple amplifiers. It is designed to handle high-impedance instrument signals without altering the tone of your guitar or bass.