JBL Go 4 Mono portable speaker Purple 4.2 W

The JBL Go 4 Mono portable speaker in purple is a compact mobile speaker designed for personal listening and on-the-go audio. It delivers an RMS rated power of 4.2 W through a single full-range driver and covers a frequency range of 90 to 20,000 Hz. Wireless Bluetooth connectivity (A2DP, AVRCP) allows streaming from mobile phones and smartphones, while a built-in 850 mAh lithium-ion battery provides continuous playtime. The speaker includes button-based volume control and has a lightweight design at 0.19 kg for easy portability.

Advantages

The JBL Go 4 Mono offers straightforward wireless audio playback with reliable Bluetooth profiles and a clear signal-to-noise ratio of 85 dB, supporting intelligible sound at moderate listening levels. Its small footprint and 0.19 kg weight make it convenient to carry in a bag or pocket. The integrated battery and button volume control simplify use without the need for additional accessories or apps.

Suitable for

• Personal music playback at home or outdoors
• Portable audio for travel and commuting
• Hands-free calls when paired with a smartphone (if supported by device)
• Supplementary audio for small gatherings or desk use

Key specifications

• Rated power (RMS): 4.2 W
• Frequency response: 90 – 20,000 Hz
• Signal-to-noise ratio: 85 dB
• Wireless connectivity: Bluetooth with A2DP and AVRCP profiles
• Battery type and capacity: built-in lithium-ion, 850 mAh
• Number of speakers: 1 (mono)
• Weight: 0.19 kg
• Colour: Purple

How to use

Charge the built-in battery fully before first use using the manufacturer-recommended charging cable. Power the speaker on, enable Bluetooth on your mobile phone or smartphone, and select the JBL Go 4 from the available devices list to establish a wireless connection using A2DP for audio streaming. Use the speaker's physical buttons to adjust volume. Playback controls on the connected device will also operate through AVRCP where supported. After use, power the speaker off to conserve battery.

Recommendations

Place the speaker on a stable surface and avoid obstructing the driver to maintain clear sound. For sustained battery health, avoid keeping the battery fully discharged for extended periods and recharge regularly. Use at moderate volume levels to preserve audio clarity and extend runtime.