Tribit StormBox Flow Portable Bluetooth Speaker — $39.99 On Sale
The Tribit StormBox Flow Portable Bluetooth Speaker is built for music on the move — and it answers a question buyers ask most: yes, the StormBox Flow can charge your phone. Its USB output port works as a power bank, letting you top up a phone or earbuds from the speaker's own battery. Shoppers who want affordable, adventure-ready audio can buy it online today for just $39.99, down from $79.99 — a 50% discount.
How to Use StormBox Flow as a Power Bank
Connect your device to the speaker's USB output port with a cable and charging begins automatically. If the Tribit StormBox Flow won't charge your phone, check that the speaker has adequate battery, use a data-capable cable, and confirm your device draws within the port's output rating.
USB Port Output & Charging Specs
- USB output port: reverse-charge power bank function for phones and small devices
- Bluetooth streaming: wireless audio from phones, tablets, and laptops
- Long-lasting battery: all-day playback for travel, beach, and camping
- Compact portable design: light enough for a backpack or tote
Best-Fit Shopper & Use Cases
Perfect for travelers, hikers, students, and commuters who want one device for both music and emergency phone charging. Use it at picnics, poolside, dorm rooms, and road trips.
Why Buy at Sonic Den Audio
At $39.99, the StormBox Flow undercuts comparable power-bank speakers from JBL and Anker while matching their portability. Apply coupon DEN10 for an extra 10% off at checkout, and enjoy free shipping on orders over $45.00.
