Quick Start Guide

Set up your Z-Amplifier, step by step

1. Charge the Z-Amplifier. Plug in the provided charger until the light turns solid orange. Charge overnight if the light is blinking or solid red.
2. Power on & set strength. Rotate the power knob clockwise until it clicks, turn it up at least 50%, and wait about 10 seconds for the green light.
3. Connect to your device. Plug the 3.5mm AUX cord into your phone or tablet and into the Z-Amplifier's audio input. Use a USB-C (iPhone 15+/Android) or Lightning (iPhone 14 and older) AUX adapter as needed. On iPhone, choose “Other Device”, not “Headphones”, to avoid signal filtering.
4. Set up the electrodes. Connect the 2.35mm cord to the Z-Amplifier, then to each electrode. Place electrodes on clean, dry skin on opposite sides of the target area for balanced flow.
5. Start a session. Open the Z-App, go to Sequences, pick one, tap Play, and set device volume to 100%. The green light blinks and you may feel a light tingling — that’s normal. No sensation around 1000 Hz, or no blinking? See the Troubleshooting Guide.
6. After use. Turn the knob counter-clockwise until it clicks off. Recharge overnight if the light is red, so it’s ready next time.

Safety reminders

Keep going

• Electrode Placement Guide
• Troubleshooting Guide
• Frequently Asked Questions