MZ S678 Compact Bluetooth Speaker – 5W High‑Bass, FM Radio, TWS & TF Card

Imagine carrying a concert‑level experience in your pocket. The MZ S678 Bluetooth speaker makes that possible with its powerful 5W stereo output, punchy bass and a suite of smart features that keep you connected wherever you are. Whether you’re commuting, camping, or simply chilling on a balcony, this compact device turns any space into a personal soundstage.

Designed for the Indian listener who loves both music and radio, the speaker combines modern Bluetooth connectivity with classic FM tuning, TF‑card and USB playback. Pair two units together using True Wireless Stereo (TWS) and instantly double the soundstage for an immersive experience that rivals larger tabletop speakers.

All of this comes in a sleek, pocket‑friendly body measuring roughly 6.5 × 7.5 cm, powered by a rechargeable 500 mAh battery and a rapid Type‑C charging port, ensuring you stay entertained for hours without hunting for an outlet.

Key Features

• 5W Stereo Output — delivers clear highs, detailed mids and deep bass for a balanced audio profile.
• High‑Bass Driver — 52 mm driver engineered for thumping low frequencies in a tiny enclosure.
• FM Radio Tuner — tune into local stations without needing a phone or internet.
• TF Card & USB Playback — play music directly from storage devices for offline listening.
• True Wireless Stereo (TWS) — pair two S678 speakers for a wider, richer soundstage.
• Built‑In Mic — hands‑free calls with clear voice transmission.
• Type‑C Fast Charging — quick power‑up so you spend more time listening.
• Portable Controls — intuitive buttons for volume, mode, and playback on the go.

Performance

The MZ S678 Bluetooth speaker punches well above its weight class. Its 5W output, while modest on paper, is amplified by the high‑bass driver to produce a surprisingly full sound. The speaker excels with EDM tracks, pop anthems and podcasts, delivering crisp highs and resonant lows that fill small rooms, cafés or outdoor patios. Battery life stretches for several hours of continuous playback, and the fast Type‑C charger restores power in under an hour, making it ideal for day‑trips and weekend getaways.

Thanks to Bluetooth 5.0, the connection is stable up to 10 meters, with low latency for video streaming and gaming. The TWS feature lets you create a stereo pair without any cables – simply press the TWS button on each unit and watch the speakers sync instantly, expanding your soundstage for a richer listening experience.

Design & Build Quality

Crafted from durable ABS plastic, the S678 balances ruggedness with a lightweight feel. Its compact dimensions (approximately 6.5 × 7.5 cm) fit easily into a backpack, jacket pocket or even a large purse. The front grille showcases a stylish mesh pattern that not only looks modern but also protects the driver from dust and minor impacts.

The control panel is thoughtfully placed for thumb‑reach, featuring a volume rocker, play/pause button, FM toggle, and a dedicated mic button for calls. The LED indicator subtly glows during playback, adding a touch of visual flair without draining the battery.

How to Use

Getting started is straightforward: press the power button, enable Bluetooth on your phone, and select “MZ S678” from the device list. For FM radio, switch to the FM mode, tune using the +/- buttons, and enjoy local stations instantly. To play music from a TF card or USB stick, insert the media into the dedicated slot, and the speaker will auto‑detect and start playback.

For TWS pairing, power on two S678 units, hold the TWS button on the first speaker until the LED flashes, then press the same button on the second speaker. Once paired, the left and right channels are automatically assigned, delivering a true stereo effect. When you’re done, simply press the power button to turn off and preserve battery life.

Why Buy From Gadgets24?

• 100% genuine product with original packaging
• Manufacturer’s warranty for peace of mind
• Fast dispatch across India – receive your speaker in 2‑3 days
• Easy 7‑day returns if you’re not completely satisfied
• Secure payment options including UPI, net banking and wallets
• Responsive customer support ready to assist you