Introduction
Thank you for purchasing the Zamkol ZK606 Portable Bluetooth Speaker. This manual provides important information regarding the setup, operation, maintenance, and troubleshooting of your device. Please read it thoroughly before use and retain it for future reference.
Package Contents
Upon unpacking, please ensure all items listed below are present and in good condition:
- Zamkol ZK606 Portable Bluetooth Speaker
- USB Type-C Charging Cable
- 3.5mm Audio Cable
- Carabiner and Strap
- User Manual

Image: Contents of the Zamkol ZK606 package, showing the speaker, charging cable, audio cable, carabiner, and user manual.
Product Overview
The Zamkol ZK606 is a portable Bluetooth speaker designed for high-quality audio output. It features 360° HiFi stereo sound with 25W power, IPX6 waterproofing, and a built-in microphone for hands-free calls.

Image: Exploded view illustrating the internal components and 360° sound design of the Zamkol ZK606 speaker.
Key Features:
- 25W 360° Surround Sound: Dual precision stereo drivers deliver powerful audio with enhanced bass and clear mids/highs.
- Bluetooth 5.0 Connectivity: Provides a stable and fast wireless connection up to 20.1 meters (66 feet).
- IPX6 Waterproof: Protected against rain, dust, snow, and spills, suitable for outdoor and bathroom use.
- Long Playtime: 5200mAh lithium-ion battery offers 10-15 hours of continuous playback on a 3-hour charge via Type-C.
- True Wireless Stereo (TWS) Pairing: Connect two ZK606 speakers for an immersive stereo surround sound experience.
- Built-in Microphone: Enables hands-free calling.

Image: Visual representation of the multi-functional features of the Zamkol ZK606 Bluetooth speaker.
Setup
Charging the Speaker
- Connect the provided USB Type-C charging cable to the charging port on the speaker.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The charging indicator light will illuminate. A full charge takes approximately 3 hours.
- Once fully charged, the indicator light will change or turn off, depending on the model. Disconnect the charging cable.
Powering On/Off
- To Power On: Press and hold the Power button for a few seconds until you hear an audible prompt and the indicator light turns on.
- To Power Off: Press and hold the Power button for a few seconds until you hear an audible prompt and the indicator light turns off.
Operating Instructions
Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth pairing mode (the indicator light will typically flash blue).
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "ZK606" from the list of found devices.
- Once paired, you will hear a confirmation sound, and the indicator light will turn solid blue.
- The speaker will automatically reconnect to the last paired device when powered on, if the device's Bluetooth is active and within range.

Image: Two ZK606 speakers paired for True Wireless Stereo (TWS) sound with a television.
True Wireless Stereo (TWS) Pairing
To achieve a stereo sound experience, you can pair two ZK606 speakers together:
- Ensure both ZK606 speakers are powered on and not connected to any other Bluetooth device.
- On one speaker, press and hold the TWS button (often combined with another function, refer to button layout) until you hear a pairing prompt. This speaker will become the primary unit.
- The two speakers will automatically search and pair with each other. Once connected, you will hear a confirmation sound.
- Now, connect your device to the primary speaker via Bluetooth as described in the "Bluetooth Pairing" section.
- Audio will now play in stereo through both speakers.
Controlling Playback and Volume
The speaker features touch controls for various functions:
- Play/Pause: Press the Play/Pause button (often represented by a triangle or circle).
- Volume Up: Press the '+' button.
- Volume Down: Press the '-' button.
- Next Track: Press and hold the '+' button.
- Previous Track: Press and hold the '-' button.
Hands-Free Calling
When connected to your smartphone via Bluetooth, the ZK606 can be used for hands-free calls:
- Answer Call: Press the Play/Pause button once.
- End Call: Press the Play/Pause button once during a call.
- Reject Call: Press and hold the Play/Pause button for 2 seconds.
Maintenance
Cleaning
- Wipe the speaker with a soft, damp cloth.
- Do not use abrasive cleaners, alcohol, or chemical solvents.
- Ensure the charging port cover is securely closed before cleaning or exposing to water.

Image: The ZK606 speaker resisting water splashes, highlighting its IPX6 waterproof feature.
Storage
- Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- If storing for an extended period, charge the battery to approximately 50% every few months to prolong battery life.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery. | Charge the speaker fully using the provided Type-C cable. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; device Bluetooth off; too far from speaker; previously paired to another device. | Ensure speaker is in pairing mode (flashing blue light). Turn on Bluetooth on your device. Move device closer to speaker. Disconnect from other devices or reset speaker's Bluetooth. |
| No sound or low volume. | Volume too low on speaker or device; speaker not connected; audio source issue. | Increase volume on both speaker and connected device. Ensure speaker is properly paired. Check audio source playback. |
| Sound distortion. | Volume too high; low battery; interference. | Reduce volume. Charge the speaker. Move speaker away from other electronic devices. |
| TWS pairing fails. | Speakers already paired to other devices; too far apart. | Ensure both speakers are disconnected from other devices. Place speakers close to each other during TWS pairing. |
Specifications
| Model Name | ZK606 |
| Brand | Zamkol |
| Speaker Type | Portable Bluetooth Speaker |
| Connectivity Technology | Bluetooth 5.0 |
| Wireless Range | Up to 20.1 meters (66 feet) |
| Audio Output Mode | Stereo, Surround Sound |
| Max Speaker Output Power | 25 Watts |
| Waterproof Rating | IPX6 |
| Power Source | Battery Powered (1 Lithium-ion battery included) |
| Battery Capacity | 5200 mAh |
| Charging Time | Approx. 3 hours (via Type-C) |
| Playtime | 10-15 hours (depending on volume and content) |
| Control Method | Touch |
| Product Dimensions (L x W x H) | 18.5 x 7 x 7.3 cm |
| Item Weight | 670 grams |
Warranty and Support
Zamkol products are designed and manufactured to the highest quality standards. For information regarding warranty coverage, please refer to the warranty card included with your purchase or visit the official Zamkol website.
If you encounter any issues or have questions about your Zamkol ZK606 speaker, please contact Zamkol customer support. Contact details can typically be found on the product packaging, the official website, or the warranty card.
- Online Support: Visit the Zamkol official website for FAQs, troubleshooting guides, and contact forms.
- Email Support: Refer to your product documentation for the customer service email address.
Safety Information
- Do not expose the speaker to extreme temperatures or direct sunlight for prolonged periods.
- Do not disassemble, repair, or modify the speaker yourself. This may void the warranty and pose safety risks.
- Keep the speaker away from children and pets.
- Use only the provided or certified charging cables.
- Avoid dropping or subjecting the speaker to strong impacts.
- Dispose of the speaker and its battery responsibly according to local regulations.