Stereo portable speaker Ultimate Ears WONDERBOOM 4 Pink

The WONDERBOOM 4 is an ultraportable Bluetooth speaker that delivers a larger-than-expected sound with pronounced bass and clear highs. It features Podcast Mode for improved vocal clarity, Outdoor Boost for audio tuned to open spaces, and up to 14 hours of battery life. The speaker has an IP67 rating for dust and water resistance, floats, withstands drops from up to 5 feet, and offers up to 40 meters of wireless range. Two speakers can be paired for stereo or dual-mono playback, and quick Bluetooth pairing is available for Android devices. The housing includes at least 31% certified post-consumer recycled plastic by weight.

Advantages

Compact and ultraportable design combined with surprisingly big, bass-forward sound. Podcast Mode enhances vocal clarity, while Outdoor Boost optimizes sound for open-air environments. Long battery life of up to 14 hours supports extended use. Robust IP67 durability protects against dust and water and allows the speaker to float. Easy wireless pairing lets you link two units for true stereo separation or increased volume. Made with a significant portion of certified post-consumer recycled plastic.

Key specifications

• Product: WONDERBOOM 4 Bluetooth speaker
• Playback time: up to 14 hours
• Durability: IP67 dust and water resistance; floats; drop resistant up to 5 ft
• Wireless range: up to 40 m
• Modes: Outdoor Boost, Podcast Mode, EQ mode for vocals
• Stereo pairing: supports pairing of two WONDERBOOM 4 units (not compatible with WONDERBOOM 1/2, BOOM, MEGABOOM, or HYPERBOOM)
• Quick pairing: one-tap Bluetooth pairing for Android
• Materials: minimum 31% certified post-consumer recycled plastic by weight

How to use

Charge the speaker fully, power it on, and enable Bluetooth on your device to pair. Use the Outdoor Boost button to switch to an outdoor-tuned sound profile and select Podcast Mode or EQ mode when you need clearer vocals. To pair two speakers, press the pairing control once to link both units and press again to enable two-channel stereo (left and right). Keep the devices within the wireless range for stable playback, and rinse with fresh water after exposure to salt or chlorinated water.

Recommendations

If using near water, secure the speaker to avoid strong currents and avoid prolonged submersion beyond rated conditions. Do not attempt pairing with older WONDERBOOM 1, WONDERBOOM 2, BOOM, MEGABOOM, or HYPERBOOM models; use only WONDERBOOM 4 units for stereo pairing. Charge regularly to preserve battery lifespan and store in a dry place when not in use.