1. Introduction
Thank you for choosing the Ceppekyy H03 Bluetooth Headset. This manual provides detailed instructions to help you set up, operate, and maintain your headset for optimal performance. Please read this manual thoroughly before use and retain it for future reference.
The Ceppekyy H03 is designed for hands-free communication and audio playback, featuring Bluetooth 5.3 connectivity, dual noise-canceling microphones, and a comfortable, adjustable design suitable for various activities such as business calls, driving, and office work.
2. Package Contents
Please check the package for the following items:
- 1 x Ceppekyy H03 Bluetooth Headset with Microphone
- 1 x LED Display Charging Case
- 1 x Type-C Charging Cable
- 1 x User Manual
- 3 x Ear Tips (S/M/L, one pre-installed on the headset)

Image: Contents of the Ceppekyy H03 Bluetooth Headset package, including the headset, charging case, Type-C cable, user manual, and three sizes of ear tips.
3. Product Overview
Familiarize yourself with the various parts and controls of your Ceppekyy H03 Bluetooth Headset.

Image: Diagram illustrating the Ceppekyy H03 headset with labels for the Multi-Function Button (MFB), volume buttons, and showing the 180° and 270° rotation capabilities.
- Multi-Function Button (MFB): Used for power on/off, play/pause, answer/hang up calls, reject calls, and redial.
- Volume Buttons (+/-): Short press for volume adjustment, long press for previous/next track.
- Ear Hook: Retractable and adjustable for secure fit.
- Microphone: Dual noise-canceling microphones for clear audio.
- Charging Contacts: For charging the headset within the charging case.
4. Setup
4.1 Charging the Headset and Charging Case
Before first use, fully charge the headset and its charging case.
- Charging the Case: Connect the provided Type-C charging cable to the charging case and a USB power source. The LED display on the case will show the battery percentage.
- Charging the Headset: Place the headset into the charging case. Ensure the charging contacts align. The headset will begin charging automatically. The LED display on the case will indicate the headset's charging status.
A full charge for the headset takes approximately 1 to 1.5 hours. The portable charging case can provide up to 4 full charges for the headset.

Image: Illustration of two charging methods for the Ceppekyy H03 headset: charging via the power box and direct charging using the Type-C cable.
4.2 Initial Pairing
Follow these steps to pair your headset with a Bluetooth-enabled device:
- Enable Bluetooth: Turn on the Bluetooth function on your mobile phone or other device.
- Power On Headset: Take the headset out of the charging box. It will automatically power on and enter pairing mode (indicated by a flashing LED).
- Search and Connect: On your device, search for Bluetooth devices and select "H03" from the list. Once connected, the headset's LED will stop flashing, and your device will show a "Connected" status.

Image: Step-by-step visual guide for one-step pairing of the H03 headset, showing how to enable Bluetooth, take the headset from the charging box, and select "H03" from the device list.
5. Operating Instructions
5.1 Basic Controls
- Power On/Off: Long press the MFB.
- Play/Pause Music: Short press the MFB.
- Volume Up: Short press the "+" button.
- Volume Down: Short press the "-" button.
- Next Track: Long press the "+" button.
- Previous Track: Long press the "-" button.
5.2 Call Management
- Answer/End Call: Short press the MFB.
- Reject Call: Long press the MFB.
- Redial Last Number: Double-press the MFB.
5.3 Voice Assistant
- Activate Voice Assistant (Siri/Google Assistant): Triple-press the MFB.
6. Wearing the Headset
The Ceppekyy H03 headset is designed for comfort and versatility, allowing it to be worn on either the left or right ear.
- Adjust Ear Hook: The ear hook is retractable and can be rotated 180° to fit comfortably over your ear.
- Adjust Boom Arm: The microphone boom arm can be flipped 270° to position the microphone optimally towards your mouth, regardless of which ear you wear the headset on.
- Select Ear Tip: Choose the ear tip size (S, M, L) that provides the most comfortable and secure fit for your ear canal.

Image: Diagram showing the 180° rotatable ear hook and 270° rotatable boom arm, illustrating how the headset can be adjusted for comfortable wear on both the left and right ears.

Image: Visual representation of the headset's comfortable fit, showing its adjustable ear hook and boom arm, along with the three included ear tip sizes (S, M, L).
7. Connecting to Multiple Devices
The Ceppekyy H03 headset supports simultaneous connection to two Bluetooth devices.
- Step 1: Pair the headset with the first device (e.g., your phone) as described in the "Initial Pairing" section.
- Step 2: Turn off Bluetooth on the first device. The headset will re-enter pairing mode.
- Step 3: Pair the headset with the second device (e.g., your laptop) as described in the "Initial Pairing" section.
- Step 4: Turn on Bluetooth on the first device again. The headset should automatically reconnect to both devices.
At this point, the headset will be connected to both devices simultaneously, allowing you to manage calls and audio from either device.

Image: Visual guide demonstrating the three steps to connect the Ceppekyy H03 headset to two different Bluetooth devices simultaneously.
8. Maintenance
- Cleaning: Use a soft, dry cloth to clean the headset and charging case. Do not use harsh chemicals or abrasive materials.
- Water Resistance: The headset is IPX5 waterproof and sweatproof, meaning it can resist a sustained, low-pressure water jet spray. Do not wash or immerse the headset in water.
- Storage: Store the headset and charging case in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the headset regularly, even if not in use for extended periods.
9. Troubleshooting
If you encounter issues with your headset, refer to the following common problems and solutions:
- Headset not powering on: Ensure the headset is charged. Place it in the charging case to confirm charging.
- Headset not pairing:
- Ensure Bluetooth is enabled on your device.
- Make sure the headset is in pairing mode (flashing LED).
- Move the headset closer to your device (within 10 meters).
- Forget "H03" from your device's Bluetooth list and try pairing again.
- No sound or low volume:
- Adjust the volume on both the headset and your connected device.
- Ensure the headset is properly connected to your device.
- Check if the correct audio output is selected on your device.
- Call quality issues:
- Ensure the microphone boom arm is positioned correctly.
- Reduce background noise if possible.
- Check for strong Bluetooth signal interference.
- Charging case not charging headset:
- Ensure the charging case itself is charged.
- Verify that the headset's charging contacts align correctly with the case's pins.
10. Specifications
| Feature | Specification |
|---|---|
| Model Number | H03 |
| Bluetooth Version | 5.3 |
| Bluetooth Range | Up to 33 feet (10 meters) |
| Music Playtime | Up to 88 hours (with charging case) |
| Talk Time | Up to 48 hours (with charging case) |
| Standby Time | Up to 60 days |
| Charging Time | Headset: 1-1.5 hours |
| Water Resistance | IPX5 (Sweatproof) |
| Microphone | Dual Noise-Canceling Microphones |
| Compatibility | Most Bluetooth-enabled devices (iPhone, Android, PC, Tablets, etc.) |
| Headset Weight | Approx. 2.75 ounces (78 grams) |
| Charging Case Weight | Approx. 50 grams |
| Product Dimensions | 3.94 x 1.57 x 0.39 inches |
11. Warranty and Support
Ceppekyy provides the following support for your H03 Bluetooth Headset:
- Warranty: 24-month warranty from the date of purchase.
- Money-Back Guarantee: 60-day money-back guarantee.
- Customer Service: 24-hour customer service and professional technical support are available. Please refer to the contact information provided with your purchase or on the official Ceppekyy website for assistance.