JBL Go 4 Portable Waterproof Bluetooth Speaker

General / Audio Specs

• Output power (RMS): 4.2 W
• Frequency response: 90 Hz – 20 kHz
• Driver size: 45 mm (1.75")
• Signal-to-noise ratio: > 85 dB

Battery & Playback

• Battery type: Li-ion polymer, 3.23 Wh (approx. 850 mAh at 3.8 V)
• Charging time: About 3 hours (5 V / 1 A)
• Playback time: Up to 7 hours, depending on volume and content
• Playtime Boost: Adds up to about 2 extra hours under specific conditions

Connectivity & Features

• Bluetooth version: 5.3
• Bluetooth profiles: A2DP v1.4, AVRCP v1.6
• Bluetooth frequency range: 2400 MHz – 2483.5 MHz
• Bluetooth transmitter power: ≤ 9 dBm (EIRP)
• Bluetooth modulation: GFSK, π/4-DQPSK
• Multi-speaker connection: Supports stereo pairing and Auracast-compatible multi-speaker linking

Physical / Build

• Dimensions: 9.4 cm × 7.8 cm × 4.2 cm
• Weight: Approximately 0.19 kg
• Durability: IP67 waterproof and dustproof

What’s in the Box

• JBL Go 4 speaker
• USB-C charging cable
• Quick Start Guide, Warranty Card, Safety Sheet