Manual for EP-E70A

Manual for EP-E70A

Brand: YAMAHA

Category: Audio/Video

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 8:49 p.m.

Manual Publish Date: 2020-08-01

Warranty Information

Warranty information is not explicitly detailed in this section of the manual.

Charging: Connect the USB power cable to the controller and a USB power adaptor. The indicator lights up during charging and turns off when complete.

Power On/Off: Hold the power key on the controller for two seconds. The indicator lights up when powered on and turns blue briefly when powered off.

Battery Check: After powering on, the indicator flashes red to show battery level (three flashes: plenty, two flashes: moderate, one flash: low).

Pairing: With the controller off, hold the Power key for 5 seconds until the indicator flashes alternately blue and red. Activate Bluetooth on your device and select "Yamaha EP-E70A".

Connecting: When powered on, the earphones automatically connect to the last paired device. If not, manually connect from your device.

Using Earphones: Use the Function key to receive/end calls or activate voice assistant. Use the ANC key to switch between Noise Cancelling and Ambient Sound modes. Adjust volume with '+' and '-' keys.

App: Use the Headphones Controller app for advanced settings and firmware updates.

Troubleshooting and error codes

Problem Possible Cause and Solution
No sound can be heard
  • Product not connected to Bluetooth: Pair the product.
  • Volume too low: Raise the volume.
  • Music stopped: Start playback.
  • Eartips do not fit: Select eartips that match your ear shape and fit securely.
  • Cable not connected correctly (if using 3.5mm cable): Ensure correct connection.
  • External device volume low (if using 3.5mm cable): Raise volume on external device.
Voice is hard to hear Speaking too far from the microphone: Move closer to the controller.
Power will not turn on Insufficient battery power: Charge the product.
Product cannot be charged
  • Computer not turned on (when charging from PC): Turn on the computer.
  • Using incorrect USB cable: Use the included USB power cable.
Cannot connect to Bluetooth
  • Devices too far apart: Move closer.
  • Electromagnetic interference: Move away from interfering devices.
  • Connection information corrupted: Delete pairing info and re-pair.
  • Already connected to another device: Disconnect other device.
  • 3.5mm cable connected: Remove cable.
Product does not operate or play back
  • Product is charging: Wait until charging is finished.
  • No remaining battery power: Charge the product.
  • Temporary malfunction: Turn power off and on again.
Sound is distorted, noisy, or choppy Signal instability: Move away from interference sources, place Bluetooth device closer, or turn off wireless features on Bluetooth device.
Problem still not resolved Contact store of purchase or Product Support Center (Japan) or nearest authorized Yamaha dealer/service center (outside Japan).
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