**Product Specifications:**
**Brand:** JBL
**Model:** G04FUN
**Product Name:** GO4 Next Generation Music Brick 4
**Color:** Multiple colors available
**Legendary Sound Quality:** Expertly tuned by Harman acoustic team, delivering powerful, full-bodied sound with exceptional transient response, resolution, and frequency range performance.
**Bluetooth Version:** 5.3
**Wireless Connectivity:** Bluetooth 5.3 for fast and stable connections, supporting wireless pairing of 2 or more speakers for multi-room playback.
**Battery Life:** Up to 7 hours of continuous playback
**Charging:** USB Type-C for convenient and efficient charging
**Waterproof Rating:** IP67 for dust and water resistance
**Special Features:** PROSOUND technology, frequency response range of 90Hz-20kHz, AURACAST custom sound effects, portable and lightweight design with integrated carrying loop.
**Speaker Driver:** 45mm/1.75" transducer
**Output Power:** 4.2W RMS
**Frequency Response:** 90Hz-20kHz
**Signal-to-Noise Ratio:** >85 dB
**Battery Type:** Lithium-ion 3.23Wh (equivalent to 3.8V/850mAh)
**Charging Time:** <3 hours
**Bluetooth Specifications:** A2DP V1.4, AVRCP V1.6
**Bluetooth Transmitter Frequency Range:** 2400MHz-2483.5MHz
**Bluetooth Transmitter Power:** ≤9 dBm (EIRP)
**Bluetooth Transmitter Modulation:** GFSK, π/4DQPSK
**Product Dimensions:** 94.3 x 75.7 x 42.2mm / 3.7" x 3.0" x 1.7"
**Product Weight:** 0.19kg / 0.42 lbs
**Package Dimensions:** 125 x 103 x 56.5mm / 4.9" x 4.0" x 2.2"
**Total Weight:** 0.32kg / 0.69 lbs
**Operating Temperature:** Up to 45°C
**Recommended Use:**
Ideal for travel, vacations, outdoor activities, hiking, and more.
**Sound Modes:**
CHILL: Soothing light sound
B1: Dynamic electronic music with clear vocals
**Additional Features:**
One-touch CP sound effects for a more immersive audio experience
JBL Portable App for customizing EQ settings, stereo or multi-room playback modes, and activating PLAYTIMEBOOST mode for enhanced performance.