Introduction
The Altec Lansing LifeJacket H2O 4 is a rugged, portable, and waterproof Bluetooth speaker designed to deliver high-quality audio in various environments. Its durable construction and advanced features make it ideal for both indoor and outdoor use. This manual provides essential information on setting up, operating, maintaining, and troubleshooting your speaker.
Safety Information
Please read all safety instructions before using your speaker. Failure to follow these instructions may result in electric shock, fire, or damage to the device.
- Do not expose the speaker to extreme temperatures or direct sunlight for extended periods.
- Ensure the port cover is securely closed before exposing the speaker to water.
- Do not attempt to disassemble or modify the speaker. This will void the warranty.
- Use only the provided charging cable or a certified equivalent.
- Keep the speaker away from medical devices, as it contains magnets.
Package Contents
- Altec Lansing LifeJacket H2O 4 Portable Speaker
- USB Charging Cable
- Quick Start Guide (Refer to the official Altec Lansing website for the full user guide PDF)
Product Overview
The Altec Lansing LifeJacket H2O 4 features a durable, octagonal design with a protective rubberized casing. The control buttons are conveniently located on the top surface, and the charging port is on the side, protected by a sealed cover.

Front view of the Altec Lansing LifeJacket H2O 4 speaker in Royal Blue, showcasing its robust design and speaker grille.

Top view of the speaker, clearly displaying the power, volume, microphone, and linking control buttons.

A close-up of the speaker's side, illustrating the sealed port cover that protects the charging and auxiliary inputs from water and dust.

An image illustrating the physical dimensions of the speaker: 7.1 inches (length), 2.9 inches (width), and 4.2 inches (height).
Setup
Charging the Speaker
Before first use, fully charge the speaker. Open the sealed port cover on the side of the speaker. Connect the provided USB charging cable to the speaker's charging port and the other end to a USB power source (e.g., wall adapter, computer USB port). The charging indicator light will illuminate during charging and turn off when fully charged. Ensure the port cover is securely closed after charging to maintain water resistance.
Powering On/Off
To power on the speaker, press and hold the Power button (
) located on the top panel until you hear an audible confirmation. To power off, press and hold the Power button again until the speaker shuts down.
Bluetooth Pairing
Follow these steps to pair your device with the LifeJacket H2O 4 speaker:
- Ensure the speaker is powered on and in pairing mode (indicated by a flashing Bluetooth indicator light).
- On your mobile device, navigate to the Bluetooth settings.
- Select "LifeJacket H2O 4" from the list of available devices.
- Once connected, the Bluetooth indicator light on the speaker will become solid, and you will hear a confirmation tone.
Operating
Playing Audio
After successful Bluetooth pairing, you can play audio from your connected device. The speaker will wirelessly stream the audio.
Volume Control
Adjust the volume using the Volume Up (+) and Volume Down (-) buttons on the top of the speaker, or directly from your connected device.
Track Navigation
To skip to the next track, press and hold the Volume Up (+) button. To go to the previous track, press and hold the Volume Down (-) button.
Voice Assistant Integration
The speaker supports voice assistant integration (Siri or Google Assistant). Press the Microphone button (
) to activate your device's voice assistant.
Answering Calls
When an incoming call is received while connected via Bluetooth, press the Microphone button (
) to answer the call. Press it again to end the call. The speaker acts as a speakerphone.
Water Resistance
The LifeJacket H2O 4 is rated IP67 waterproof, shockproof, snowproof, and dustproof. This means it can be submerged in water up to 1 meter for 30 minutes. Always ensure the port cover is completely sealed before exposing the speaker to water.

A hand demonstrating the speaker's waterproof capability by holding it partially submerged in water.
Maintenance
Cleaning
To clean the speaker, use a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners, as these may damage the surface or internal components. Ensure the speaker is dry before charging.
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 periodically to maintain its lifespan.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Battery is drained. | Charge the speaker using the provided USB cable. |
| Cannot pair with Bluetooth device. | Speaker is not in pairing mode or too far from device. | Ensure speaker is on and Bluetooth indicator is flashing. Move device closer to speaker. Turn off and on Bluetooth on your device. |
| No sound or low volume. | Volume is too low or device is not connected. | Increase volume on both speaker and connected device. Re-pair Bluetooth connection. |
| Sound distortion. | Volume is too high or device is too far. | Lower the volume. Move the connected device closer to the speaker. |
Specifications
- Model Name: Jacket H2O 4 Rugged Floating Ultra Portable Bluetooth
- Speaker Type: Outdoor
- Special Feature: Portable
- Recommended Uses For Product: Music
- Compatible Devices: Apple and Android devices, tablets, and laptops
- Unit Count: 1.0 Count
- Controller Type: App Control, Voice Control
- Surround Sound Channel Configuration: 4.2
- Color: Royal Blue
- Battery Life: 10 Hours
- Included Components: Portable Speaker
- Product Dimensions: 7.1"D x 2.9"W x 4.2"H
- Item Weight: 1.28 Pounds
- Is Waterproof: True
- Charging Time: 10 Hours (This seems to be a typo in the source data, likely referring to battery life or charging duration, not charging time in hours)
- Warranty Type: Limited
- Maximum Range: 100 Feet
- Number of Items: 1
- Control Method: Voice
- Wireless Communication Technology: Bluetooth
- Speaker Size: 1.5 Inches
- Power Source: Battery Powered
- Water Resistance Level: Waterproof
- Number of Batteries: 1 Lithium Ion battery required. (included)
- Audio Driver Type: Dynamic Driver
- Bluetooth Range: 100 Feet
- Audio Latency: 200 Milliseconds
- Subwoofer Connectivity Technology: Wireless
- Connectivity Protocol: Bluetooth
- Includes MP3 player?: No
- Number of Power Levels: 1
- Processor Count: 1
- Specific Uses For Product: Outdoor activities
- UPC: 021331164957
- Style: Speaker
- Manufacturer: Sakar International
- ASIN: B07G9RFPXN
- Date First Available: August 8, 2018
- Speaker Maximum Output Power: 10 Watts
- Audio Output Mode: Stereo
- Mounting Type: Portable
Warranty
The Altec Lansing LifeJacket H2O 4 comes with a Limited Warranty. For specific terms and conditions, please refer to the warranty information included in your product packaging or visit the official Altec Lansing website.
Support
For further assistance, troubleshooting, or product information, please visit the Altec Lansing support page or refer to the comprehensive user guide available for download on their official website. You can find the user guide PDF at: Altec Lansing User Manual (PDF)







