Bluetooth speaker with radio: the one whose battery lasts

Updated 2026-11-10 · Pick: Avantree PowerByte (BTSP-880) · Dealectric link: Panasonic SC-PM270, $139.99 on Amazon (checked 2026-11-12), buy on Amazon: https://www.amazon.com/dp/B0CZ9Q8332?tag=dealectric-20

Short answer. For a Bluetooth speaker with radio, pick the Avantree PowerByte. It has built-in FM radio and a 26.6 Wh battery, over 7 times the SP850's. Its 20-hour claim holds at 50% volume, an average draw of about 1.3 W, so playing it loud near its 30 W rating runs far shorter.

Searched as: best Bluetooth speakers with built in FM radio 2026 models

How this table was made: each figure comes from the maker's own US product page or manual, or from the reviewer named next to it, checked 2026-11-10. Dealectric does not test units itself. Rows with a Buy link are products Dealectric lists: the links are affiliate links, and their codes are re-tested in the brand's own cart every day (last check 2026-11-13).

What the differences mean

• PowerByte stored energy: 7.4 V × 3.6 Ah = 26.6 Wh.
• What the 20-hour claim draws: 26.6 Wh ÷ 20 h = 1.33 W average at 50% volume, which is 4.4% of the 30 W rating (1.33 ÷ 30).
• Limit at the full rating: 26.6 Wh ÷ 30 W = 0.89 h, before amplifier losses. Music rarely holds full power for long, so this is the most it could manage at a constant 30 W, not what a loud afternoon will give you.
• PowerByte vs SP850: 26.6 ÷ 3.7 = 7.2 times the energy.
• PowerByte vs Studebaker SB2006: 3.6 Ah × 3.6–3.7 V = about 13 Wh, so the PowerByte holds about twice as much (26.6 ÷ 13.3 = 2.0).
• Price per Wh: PowerByte $99.99 ÷ 26.6 = $3.76; Studebaker $59.99 ÷ 13.3 = about $4.50; SP850 $36.99 ÷ 3.7 = $10.00.
• Plug-in draw: the Panasonic SC-PM270 uses 14 W in normal use. At that rate, a battery the size of the PowerByte's would last 26.6 ÷ 14 = 1.9 h, which is why it plugs into the wall.

Use	Fits
FM all day in the yard, garage or campsite	Avantree PowerByte
A pocket radio for walks; swap batteries rather than recharge	Avantree SP850 with the spare battery
AM talk or sports on battery	Studebaker SB2006, when Target restocks it
AM/FM on a nightstand or kitchen counter	Tivoli Audio Model One BT
A shelf system that also plays CDs	Panasonic SC-PM270

Why 30 W and 20 hours can't happen at the same time

Runtime equals battery energy divided by average power draw. Avantree's PowerByte manual lists a built-in 7.4 V 3,600 mAh battery, 'Up to 20hrs (at 50% volume)' and 30 W (15 W × 2). Those 20 hours mean an average draw of about 1.3 W. Turn it up and the draw climbs toward the rating while the battery stays at 26.6 Wh, so the hours drop. Battery energy is the figure to compare across speakers, because a watt rating with no volume level or test condition can't be compared. The PowerByte stores the most energy of the speakers listed here, so it wins for long listening on battery at moderate volume. It is the wrong choice if you want it loud all afternoon away from a socket.

On the radio side, all five tune FM, and only the Studebaker and the Tivoli add AM. The PowerByte's manual lists 87–108 MHz, which covers US FM stations. On Avantree's BoomByte ($59.99 at Avantree), a 'Campus Band' setting limits the search to 76–90 MHz, according to Avantree Support. Switching to 'Common Band' restores 87–108 MHz. For digital radio, the US uses HD Radio, which HD Radio's own regulatory page says the FCC approved on 11 October 2002, not DAB. A DAB/DAB+/FM model such as the JBL Tuner 2 therefore works only as an FM radio in the US.

We don't sell the PowerByte; Avantree sells it directly. Of the products we carry, the Panasonic SC-PM270 is the one with a radio. It is a plug-in FM, CD and Bluetooth shelf system, not a portable speaker: buy on Amazon: https://www.amazon.com/dp/B0CZ9Q8332?tag=dealectric-20

Not recommended

iHome iBT330: iHome's own store showed it as 'Sold out' on 2026-11-10. Its 'up to 30 hours between charges' comes with no volume level, so it can't be compared with the PowerByte's 20 hours at 50% volume.

JBL Tuner 2 for US buyers: its DAB/DAB+ tuner has no US broadcasts to receive. GadgetByte Nepal also measured about 8 hours over Bluetooth at full volume, against JBL's claim of up to 12 hours of radio listening.

Sources

• Avantree PowerByte price $99.99 and stock, Avantree US store (read 2026-11-10) — avantree.com
• PowerByte manual specs: 7.4 V 3,600 mAh, up to 20 h at 50% volume, 30 W (15 W × 2), FM 87–108 MHz, 1,745 g, 5 V/3 A (read 2026-11-10) — www.manualslib.mx
• Avantree SP850 price $36.99 and spare battery $14.99, Avantree US store (read 2026-11-10) — avantree.com
• SP850 manual: Li-ion 1,000 mAh / 3.7 V, DC 5 V 500 mA charging, FM 87–108 MHz (read 2026-11-10) — www.manualslib.de
• Studebaker SB2006: AM/FM, 3,600 mAh 18650 cell, RMS 4 W × 2, AC adapter, $59.99, out of stock at Target (read 2026-11-10) — www.target.com
• Tivoli Model One BT price $179.99 and Tivoli's 12 V 1.5 A power supply (read 2026-11-10) — tivoliaudio.com
• Tivoli Model One BT FM/AM tuner, AREADVD test by Carsten Rampacher (read 2026-11-10) — www.areadvd.de
• Panasonic SC-PM270: FM 87.5–108 MHz, 20 W (10 W + 10 W), AC 120 V 60 Hz, 14 W normal use, Panasonic North America spec page (read 2026-11-10) — help.na.panasonic.com
• iHome iBT330: 'Sold out', up to 30 hours between charges, FM, IPX4, iHome store (read 2026-11-10) — ihome.com
• Avantree BoomByte 'Campus Band' 76–90 MHz vs 'Common Band' 87–108 MHz, Avantree Support (read 2026-11-10) — support.avantree.com
• BoomByte price $59.99, Avantree US store (read 2026-11-10) — avantree.com
• HD Radio IBOC approved by the FCC as the US digital radio method, 11 October 2002 (read 2026-11-10) — hdradio.com
• JBL Tuner 2 bands FM, DAB, DAB+ and claim of up to 12 h of radio listening, JBL (read 2026-11-10) — mm.jbl.com
• JBL Tuner 2 measured about 8 h over Bluetooth at maximum volume, GadgetByte Nepal (read 2026-11-10) — www.gadgetbytenepal.com

Published 2026-11-10; updated 2026-11-10. The buy links are affiliate links; see the disclosure. Corrections welcome at [email protected] or /feedback.