HD-Max Loud Portable Bluetooth Speaker

A big, loud Bluetooth speaker built for backyard cookouts, beach days, morning workouts, and everyday listening at home. Its four-driver system with two 75 mm woofers and two 30 mm tweeters delivers 60W of stereo sound with deep bass that fills open spaces. The 6,600mAh battery powers up to 20 hours of playtime, doubles as a power bank for phones and tablets, and pairs with a second HD-Max for true wireless stereo at larger gatherings.

Includes

• One (1) HD-Max Portable Bluetooth Speaker
• One (1) 3.5 mm AUX cable
• One (1) USB-C charging cable
• One (1) removable shoulder carrying strap
• One (1) bottle opener
• Quickstart guide

Features

• 60W stereo output with four-driver system: two 75 mm woofers and two 30 mm tweeters
• Frequency range of 80 Hz to 20 kHz for full-range audio
• IPX7 waterproof rating: handles rain, splashes, and submersion up to 1 meter for 30 minutes
• Bluetooth 5.3 with up to 33 ft of stable wireless range
• 6,600 mAh built-in power bank charges phones and tablets directly from the speaker
• True Wireless Stereo pairing connects two HD-Max speakers as a left-right pair for wider sound
• 3.5 mm AUX input for wired playback from non-Bluetooth devices
• Built-in microphone for hands-free calls

• Up to 20 hours of playtime on a single charge

• USB-C fast charging with pass-through support, full recharge in about 5 hours
• Reinforced shoulder strap distributes weight for easy carry
• Compact design fits in a backpack or sits upright on a table

Materials

• Speaker: ABS plastic / fabric
• Strap: Nylon

Measurements

• Speaker:
• Dimensions: 12.2” x 5.4” x 5.6”
• Weight: 4.77 lbs
• Strap: 50” in length
  

How to Use

• Press and hold the power button for about 2 seconds to turn the speaker on
• Enable Bluetooth on a phone, tablet, or laptop and select TREBLAB HD-Max to pair
• Tap the play, volume, or track controls on the top panel to manage music
• Use the multi-function button to answer or end calls
• For stereo pairing, power on two HD-Max units and press the TWS button on one to link them as a left-right pair
• Connect a wired source through the 3.5 mm AUX input when needed
• Charge a phone or tablet by plugging it into the USB output on the speaker

Care Instructions

• Wipe the speaker grille and body with a soft, dry cloth after outdoor use
• Allow the speaker to fully dry before storing if it has been exposed to water
• Close all port covers tightly before any water exposure
• Charge only with the included USB-C cable or a standard 5V USB-C power source
• Avoid exposure to extreme heat, direct sunlight, or freezing temperatures for extended periods
• Store the speaker in a cool, dry place when not in use for long periods

About the Brand

Practical, well-made tech for the way real life actually looks. From audio built for moving, focusing, and winding down to wellness and home devices designed to make daily routines easier, every product is built to do one thing well.