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JBL PartyBox 520
- 400W power output
- Replaceable battery
- AI sound Boost
- Advanced Bluetooth connectivity
- Advanced Karaoke features
- LED lighting
- JBL partybox app
- Strong telescopic handle
- IPX4 water resistance
- 15 hours of playback on a single charge
Brand: JBL

JBL PartyBox 520
Description
The JBL PartyBox 520 is JBL’s most powerful battery-powered party speaker to date, designed for large gatherings and outdoor events. It combines high-output sound, advanced connectivity, and portability with a splashproof design and customizable light effects.
🔊 Key Features
- Powerful Sound Output: Delivers 400W RMS through dual 7.5-inch woofers and two 1-inch dome tweeters, covering a frequency range of 40 Hz – 20 kHz with a signal-to-noise ratio over 80 dB.
- AI Sound Boost: Utilizes real-time AI algorithms to optimize audio output, enhancing clarity and reducing distortion.
- Extended Battery Life: Offers up to 15 hours of playtime on a single charge, with a replaceable battery system. A 10-minute quick charge provides approximately 2 additional hours of playback.
- Auracast™ Multi-Speaker Connectivity: Supports Auracast™ technology, allowing seamless pairing with other compatible JBL speakers for an expanded sound experience.
- Bluetooth 5.4 with LE Audio: Ensures stable, high-quality wireless streaming.
- Versatile Inputs: Equipped with dual XLR inputs for microphones or instruments, along with USB-C and auxiliary connections.
- Dynamic Light Show: Features synchronized LED lighting effects that can be customized via the JBL PartyBox app.
- Portability: Designed with a telescopic handle and sturdy wheels, making it easy to transport.
- Durability: IPX4-rated splashproof construction ensures resilience against water splashes.
📊 Technical Specifications
- Transducers: 2 × 7.5″ (208 mm) woofers, 2 × 1″ (25 mm) dome tweeters
- Frequency Response: 40 Hz – 20 kHz
- Signal-to-Noise Ratio:
- 80 dB
- Bluetooth Version: 5.4
- Supported Bluetooth Profiles: A2DP V1.4, AVRCP V1.6
- Input Sensitivity:
-
-
Aux-In: 250 mV RMS (3.5 mm connector)
-
Mic-In: 20 mV RMS
-
Guitar-In: 100 mV RMS
-
Bluetooth/USB Input: -12 dBFS
-
- USB Format: FAT16, FAT32
- Supported Audio Formats: .MP3, .WAV, .WMA, .FLAC (Note: FLAC not supported in EMEA and Brazil regions)
- USB-C Charge Out: PDO (5 V / 3 A, 9 V / 3 A)
- Power Input: 100 – 240 V ~ 50 / 60 Hz
- Output Power: 400 W RMS (IEC60268)
💰 Pricing & Availability
- Price: KSh. 75,000/=
- Availability: Available at Fastgadgets Kenya Shop.
📦 Sustainable Design
The PartyBox 520 incorporates recycled plastic and fabric materials and comes packaged in FSC-certified paper, reflecting JBL’s commitment to environmental sustainability.
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