JBL Charge 4 Specs

JBL Charge 4 Bluetooth speaker, back view, showing the port access panel door in the closed position, and the pedestal that the speaker sits on that prevents rolling.

The Charge 4 JBL speaker sounds BIG, and plays loud enough to fill outdoor parties with ponderous sounding tunes. Thus, as we’ll see in the JBL Charge 4 specs below, it features noticeably more bass output than models in the JBL Flip family. So this is a sure upgrade from Flip.

Plus, even when playing at top volume, the built-in rechargeable battery lasts up to twenty hours per recharge.

The JBL Charge 4 top view, showing the buttons panel.

Furthermore, in our view the most fascinating feature: you can charge your cell phone, tablet, or other mobile device right from this speaker’s 7500 milliamp hour battery.

But while we only got a twenty-five percent raise in our iPad Air’s battery percentage before the storage cells in this speaker went dead, this was enough to save the current task on the tablet. Indeed, it’s nice having the emergency bank of power along for the ride when you carry around the JBL Charge 4 Bluetooth speaker.

JBL Charge 4 front view, charging from a JBL USB AC power adapter.

JBL Charge 4 Specs

- Dimensions: (W x D x H) 22 x 9.5 x 9.3 (cm).
- Dimensions: (W x D x H) 8.66 x 3.74 x 3.66 (inches).
- Next the weight is: 960 grams, 2.12 pounds.
- Battery type: Lithium-ion polymer, 7500 MaH, 27 Wh.
- The battery charge time: 4.0 hours @ 5V 2.3A.
- AC Adapter (recommended): 5 volts, 2.3 amps.
- USB Charge Output: 5 volts, 2.0 amps MAX.
- Bluetooth Transmitter Frequency Range: 2.402 – 2.480 GHz.
- The Bluetooth Transmitter Power: 0-20dBm.
- Bluetooth Transmitter Modulation: GFSK, π/4 DQPSK, 8DPSK.
- The Bluetooth version: 4.2.
- Music playing time: Up to 20 hours (varies by volume level and audio content).
- Support: A2DP V1.3, AVRCP V1.6.
- Transducer: 1 X : 50 x 90mm (mono).
- Audio output power: 30 watts RMS.
- Frequency response: 60 Hz. – 20 kHz.
- Signal-to-noise ratio: ≥ 80dB.
- Case design: Waterproof to IPX7 standards when the charge port door is closed tightly.

Finally, as you might see here, and as you’ll definitely hear should you listen to the JBL Charge 4, this speaker is a top notch audio performer for its size.

JBL Charge 4 Features

- Firstly, the built in power bank can recharge smaller smart phones and tablets with the correct USB cable.
- USB power output that supports this device charging.
- Additionally, this unit supports the Connect Plus protocol to join up to over a hundred compatible JBL speakers such that they all play the same program.
- 20 hours play time per recharge.
- Plus, connect up to two smart devices so they can take turns streaming to this speaker.
- Monophonic (not stereo) output, unless you pair this with another Charge 4 in a stereo pair.
- Waterproof design.
- Furthermore, there are many case colors available.
- Rugged yet easily cleaned case.
- Finally, the two bass radiators give an even bigger, bass blasting sound.