1. Introduction
The PSIER X18 Bone Conduction Headphones offer an innovative audio experience by transmitting sound through your cheekbones, leaving your ears open to ambient sounds. This design enhances situational awareness, making them ideal for outdoor activities, sports, and office environments. Featuring Bluetooth 6.0 connectivity, a lightweight design, and IPX5 waterproofing, these headphones are built for comfort and durability.
Key Features:
- Bone Conduction Technology: Delivers audio through bone vibrations, keeping ear canals open.
- Open-Ear Design: Maintains awareness of surroundings for enhanced safety during activities.
- Bluetooth 6.0: Provides stable and low-latency wireless connectivity.
- Lightweight Comfort: Weighs only 23g with a flexible memory-titanium frame for a secure fit.
- IPX5 Waterproof: Resistant to sweat and rain, suitable for various weather conditions (not for swimming).
- Extended Playtime: Up to 10 hours of music playback on a single charge.
Video: Overview of PSIER Bone Conduction Headphones, highlighting their suitability for active lifestyles and outdoor use, demonstrating the open-ear design and secure fit.
3. Setup Guide
3.1 Initial Charge
Before first use, fully charge your headphones. Connect the provided Type-C charging cable to the charging port on the headphones and plug the other end into a USB power source. The LED indicator will show charging status and turn off when fully charged.

Image: PSIER X18 headphones connected to a Type-C charging cable.
3.2 Power On/Off
- Power On: Press and hold the multi-function button (usually the middle button on the control panel) for 2 seconds until the LED indicator flashes blue and a voice prompt says "Power On".
- Power Off: Press and hold the multi-function button for 3 seconds until the LED indicator flashes red and a voice prompt says "Power Off".
3.3 Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the multi-function button for 5 seconds until the LED indicator flashes red and blue alternately, and a voice prompt says "Pairing". This indicates the headphones are in pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "X18" from the list of available devices.
- Once connected, the LED indicator will flash blue slowly, and a voice prompt will confirm "Connected".
Video: Demonstrates powering on and pairing the PSIER Bone Conduction Headphones with a mobile device. The user presses the power button, then navigates to Bluetooth settings on their phone to connect to "X12" (note: model name in video is "X12", product is "X18").
3.4 Wearing the Headphones
Place the headphones with the transducers resting on your cheekbones, just in front of your ears. The neckband should rest comfortably behind your head. Adjust the fit using the included adjustable strap if needed to ensure a snug and secure fit, especially during active use.

Image: A person demonstrating the secure and comfortable fit of the PSIER X18 Bone Conduction Headphones during a run.
5. Maintenance
5.1 Cleaning
Wipe the headphones with a soft, damp cloth after each use, especially after workouts, to remove sweat and dirt. Do not use abrasive cleaners or submerge the headphones in water.
5.2 Storage
Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures. Avoid placing heavy objects on them to prevent damage to the frame.
5.3 Water Resistance (IPX5)
The PSIER X18 headphones are IPX5 rated, meaning they are protected against low-pressure water jets from any direction. This makes them suitable for use during light rain and sweaty workouts. They are not designed for submersion in water or for swimming.

Image: PSIER X18 headphones being splashed with water, demonstrating their IPX5 water resistance.
8. Warranty & Support
8.1 Warranty Information
The PSIER X18 Bone Conduction Headphones come with a 1-year manufacturer's warranty covering defects in materials and workmanship. Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For further assistance, troubleshooting, or warranty inquiries, please contact PSIER customer support through the retailer's platform or visit the official PSIER website for contact details.