Soundcore - Boom Go 3i

Soundcore Boom Go 3i Portable Bluetooth Speaker

General Description

Take powerful sound wherever the day leads with the Soundcore Boom Go 3i, a compact and rugged portable Bluetooth speaker built for travel, outdoor activities and everyday entertainment.

Despite its palm-sized design, the Boom Go 3i produces up to 15W of audio output and reaches volume levels of approximately 92 dB. Soundcore’s BassUp technology enhances low frequencies, delivering stronger bass and a fuller listening experience from its compact enclosure.

Its durable construction carries an IP68 water and dust-resistance rating and has been tested to withstand drops of up to one metre. Whether you are heading to the beach, camping, cycling or simply listening around the house, the Boom Go 3i is designed to handle demanding everyday environments.

Battery performance adapts to how the speaker is used. It provides up to 24 hours of playback at 50% volume with BassUp enabled, or as much as 40 hours in Eco mode with lighting switched off. The built-in 4,800mAh battery can also supply emergency power to a compatible mobile phone.

A flexible silicone strap and dual mounting points allow the speaker to be clipped, carried or hung from a backpack, bicycle, tent or other suitable location. Customisable lighting, True Wireless Stereo pairing, Auracast connectivity and Soundcore app controls complete a versatile portable audio experience.

Key Features

• Powerful 15W sound: Delivers clear, dynamic audio with impressive volume from a compact speaker.

• Up to 92 dB loudness: Provides enough output for personal listening, small gatherings and outdoor activities.

• Enhanced bass performance: Soundcore BassUp technology strengthens low frequencies for a richer sound.

• Up to 40 hours in Eco mode: Extended playback is available at moderate volume with lighting disabled.

• Up to 24 hours with BassUp: Enjoy all-day playback at 50% volume with BassUp active and lighting switched off.

• 4,800mAh power bank: Use the speaker’s internal battery to provide emergency charging to a compatible mobile device.

• IP68 protection: Fully protected against dust and designed to withstand controlled water immersion under specified test conditions.

• One-metre drop protection: Rugged construction has been tested against accidental drops from heights of up to one metre.

• Flexible silicone strap: Carry, clip or hang the speaker using its versatile dual-mount design.

• Music-synchronised lighting: Six dynamic lighting modes react to the beat of your music.

• Ambient lighting modes: Choose from eight ambient options or create a personalised colour scheme.

• True Wireless Stereo: Pair two Boom Go 3i speakers for left-and-right stereo playback.

• Auracast connectivity: Connect three or more compatible Auracast speakers for wider sound coverage.

• Bluetooth 6.0: Provides efficient and stable wireless connectivity with compatible devices.

• Soundcore app support: Customise EQ, lighting, controls and other supported settings.

• Emergency alert sound: Activate a piercing audible signal to help attract attention when assistance is required.

Technical Specifications

Specification	Details
Brand	Soundcore
Product	Boom Go 3i
Model number	D5103
Product type	Portable Bluetooth speaker
Audio output	15W
Maximum loudness	Approximately 92 dB
Bass enhancement	BassUp
Bluetooth version	Bluetooth 6.0
Standard battery playback	Up to 24 hours
Eco-mode playback	Up to 40 hours
Maximum-volume playback	Approximately 6 hours
Internal battery capacity	4,800mAh
Power bank function	Yes
Water and dust resistance	IP68
Drop protection	Tested from up to 1 metre
Speaker pairing	True Wireless Stereo and Auracast
Lighting	Dynamic, ambient and customisable modes
App compatibility	Soundcore app
Carrying system	Flexible silicone strap with dual mounting options
Product weight	Approximately 380 g
Charging connection	USB-C
Recommended use	Travel, camping, beach, poolside, cycling and everyday listening

Battery Performance

Battery runtime varies according to volume, EQ, lighting and connected features:

Operating Conditions	Estimated Playback
50% volume, lights off, Eco mode	Up to 40 hours
50% volume, lights off, BassUp mode	Up to 24 hours
100% volume, lights on, BassUp mode	Approximately 6 hours

These figures are based on Soundcore laboratory testing. Actual playback time will vary according to audio content, temperature, battery condition and operating settings.

Power Bank Function

The built-in 4,800mAh battery allows the Boom Go 3i to provide emergency charging to compatible mobile devices. This can be useful for maintaining access to calls, messages, maps and other essential functions during travel or outdoor activities.

Using the power bank function reduces the speaker’s remaining playback time. Charging performance depends on the connected device, cable and operating conditions.

Lighting Effects

Create a personalised atmosphere with integrated lighting that can synchronise with your music.

Available options include:

• Six dynamic, beat-responsive modes

• Eight ambient lighting modes

• Customisable colours

• Lighting controls through the Soundcore app

• Option to switch lighting off to conserve battery power

Multi-Speaker Connectivity

For a wider listening experience, the Boom Go 3i supports:

• True Wireless Stereo: Connect two compatible Boom Go 3i speakers to create separate left and right audio channels.

• Auracast: Connect three or more compatible Auracast devices for expanded audio coverage.

Auracast is not compatible with older Soundcore PartyCast-only products. Always confirm the connection standard of each speaker before purchasing additional units.

Outdoor Durability

The IP68-rated construction provides protection against dust, rain, splashes and controlled water immersion. The speaker has also been tested to survive drops of up to one metre under specified laboratory conditions.

For continued protection, ensure the charging-port cover is completely closed before exposing the speaker to water, sand or dust.

Package Contents

• 1 × Soundcore Boom Go 3i portable speaker

• 1 × flexible silicone carrying strap

• 1 × USB-C charging cable

• 1 × quick-start guide

• Safety and warranty documentation

Power adaptor may not be included. Package contents can vary slightly by market or production batch.

Important Information

• IP68 resistance is based on controlled laboratory testing and may decrease through wear, impact or damage.

• Ensure the charging-port cover is securely closed before exposure to water or dust.

• Do not charge the speaker while it is wet. Dry the speaker and charging port completely before connecting a cable.

• Drop protection does not guarantee that the speaker cannot be damaged under every condition.

• Battery runtime varies significantly according to volume, BassUp, lighting, temperature and power bank use.

• The stated 40-hour runtime requires Eco mode, moderate volume and lighting switched off.

• Auracast is not compatible with Soundcore speakers that support only PartyCast.

• Emergency charging is intended as a convenient backup and may not fully recharge every mobile phone.

• The emergency alert sound is an attention-assistance feature and should not replace dedicated safety or emergency equipment.

• Avoid prolonged listening at maximum volume to help protect your hearing.