The Kicker Bullfrog BF400 is rated 3.5/5 for sound quality, #47 of 113 Boombox Size Portable Bluetooth Speakers. See all Portable Bluetooth rankings for every top pick.
Prices on this page were last checked November 11, 2026 at 3:26 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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#47 Kicker Bullfrog BF400: $399.99 Discontinued eBay
Pros: A rugged, water resistant speaker that plays all around, with a long battery, FM radio and a power bank. A rugged IP66 360 degree speaker with clear sound, a rated 20-hour battery at medium volume, an FM tuner and a power bank output. In a five speaker side by side from Livin’ Loud with Andy it had the clearest sound of the group, ahead of the JBL Xtreme 3, JBL Flip 5 and Kicker’s own Bullfrog BF100, with a flatter pink noise response through the mids and highs. In Williston Audio Labs’ test most listeners also preferred it to the much bigger Turtlebox Original Gen3 and Pioneer PBM5 for its cleaner sound. Two full range drivers and two passive radiators fire from both sides. It also has an aux input, the Kicker Connect app with five EQ presets, and DoubleKICK pairing with a second Bullfrog.
Cons: It trades bass for that clarity: listeners heard less low end than from the JBL Flip 5 and the Turtlebox. It isn’t very loud either, peaking at about 96 dB in Williston Audio Labs’ test against 102 dB for the Turtlebox and 105 dB for the Pioneer, from a modest 20W amplifier. Battery life falls to about 3 hours at loud volume, and it charges only from its own 15V barrel plug adapter. Discontinued.
Is the Kicker Bullfrog BF400 right for you?
Buy it if
- you want long battery life (claimed 20 hours).
- you want to charge your phone from it.
Skip it if
- you want to buy it new: it is discontinued.
| Released | Around 2017 (about 9 years ago) |
|---|---|
| Amplifier Power | 20W |
| App | Yes (Kicker Connect) |
| Aux Input | Yes |
| Battery Capacity | 37Wh (11.1V, 3350mAh) |
| Battery Life | 20 hours at medium volume, 3+ hours loud (Manufacturer specified) |
| Bluetooth | Yes |
| Built-in Microphone | No |
| Charging Time | 2.5 hours |
| Dimensions | 10.6”H x 6”W x 7.7”D (269 x 152 x 196 mm) |
| Drivers | 2x 76mm (3”) full range drivers + 2x 76x102mm (3x4”) passive radiators |
| EQ | Yes (5 presets) |
| FM Tuner | Yes |
| IP Rating | IP66 |
| Maximum SPL | 96dB (measured by Williston Audio Labs) |
| Omnidirectional | Yes |
| Power Bank | Yes (USB-A, 2.1A) |
| Power Input | DC Barrel Connector (15V/2.66A) |
| Strap | No |
| TWS | Yes (DoubleKICK Connect) |
| Weight | 8.6 lbs (3.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
Questions about the Kicker Bullfrog BF400? Ask other owners on r/WirelessSpeakers.