Bluetooth speaker portable fabric square design TWS function with FM radio USB TF card playback hands-free calling built-in 4000mAh battery 20Wx2 output power shoulder strap included available in black blue camouflage and red colour options
F666 Portable Bluetooth Speaker: TWS Pairing, FM Radio, and 20W Output in Compact Design

This F666 portable Bluetooth speaker offers a multi-functional audio solution in a handbag-sized unit measuring 230mm by 95mm. Designed for users needing versatile playback options outdoors or at home, it combines Bluetooth 5.0 wireless streaming with traditional FM radio via a retractable antenna. The speaker features a 4000mAh built-in battery for extended portable use and delivers sound through a 20W x 2 output configuration. Its square form, constructed from mesh fabric and plastic, houses controls for easy mode switching between Bluetooth, USB drive, TF card, AUX input, and FM radio. The inclusion of a shoulder strap underscores its mobile design, making it suitable for picnics, workshops, or casual indoor listening.
Features and Construction

The F666 speaker's build centres on practical, multi-source audio playback in a durable format. Its technical parameters define its wireless capability and power output, while the physical design prioritises portability and ease of use.
Material and Build
The speaker casing uses a combination of mesh fabric and plastic. The mesh likely covers the driver area for sound dispersion and protection, while the plastic forms the main body, housing the internal electronics, battery, and control buttons. This construction results in a robust, lightweight unit that can withstand typical portable use. The square shape provides a stable base, preventing tipping when placed on flat surfaces. A retractable FM antenna is integrated for better radio signal reception, which can be extended when in use and stored when not needed.
Size and Practical Fit
With dimensions of 230mm in length, 95mm in height, and 95mm in depth, the speaker maintains a compact footprint comparable to a small handbag. This size makes it easy to transport using the included shoulder strap or to place on a shelf or table without occupying excessive space. The 4000mAh battery capacity supports several hours of playback on a single charge, reducing the need for constant power access. The wireless Bluetooth 5.0 connection offers a 10-metre transmission distance, allowing some movement flexibility between the speaker and your audio source.
Uses and Placement

The speaker's multiple connectivity options suit various listening scenarios, from personal music enjoyment to providing background sound for group activities. Its portability and battery power enable use in locations without immediate mains power.
Event or Professional Use
For outdoor events, parties, or market stalls, the speaker's 20W x 2 output provides sufficient volume coverage. The TWS (True Wireless Stereo) function allows you to pair two F666 units for a wider, stereo sound field—ideal for creating a more immersive audio environment. The FM radio function can provide live broadcasts or background music without needing a connected phone. The support for USB drives and TF cards means pre-loaded playlists can run independently, useful for repetitive playback in retail or workshop settings. The hands-free calling function allows it to serve as a speakerphone for conference calls when connected to a mobile.
Everyday Home Use
Around the home, the speaker can function as a versatile audio centre for different rooms. Its compact size allows placement on a kitchen counter, bedside table, or home office desk. The Bluetooth connection streams music from phones or tablets, while the AUX input can link to older devices like CD players or laptops. The memory function, which supports breakpoint resuming on USB and TF card playback, lets you pause and continue listening to long audio files or podcasts. The FM radio offers an alternative to streaming services for news or music stations.
Benefits and Buying Value

The F666 speaker's value lies in consolidating several audio playback methods into one portable device, reducing the need for multiple separate units. Its construction and feature set aim for practical utility over specialised high-fidelity performance.
Reuse and Low Maintenance
The rechargeable 4000mAh battery supports repeated use cycles, and the speaker can operate while charging via the provided data cable. The multiple playback sources (Bluetooth, USB, TF card, AUX, FM) mean the device remains usable even if one source (like a phone) is unavailable. The simple plastic and mesh exterior can be wiped clean with a dry cloth if needed. There are no complex care regimens; avoiding liquid exposure and using the included cables for charging and audio connection forms the core maintenance advice.
Why Choose This Product
This speaker suits users who prioritise versatility and portability in their audio equipment. The combination of TWS pairing for expanded sound, FM radio with an antenna, and support for physical media (USB/TF card) offers more connectivity options than many basic Bluetooth speakers. The included shoulder strap and cable set enhance its ready-to-use nature. The 20W x 2 output and 4000mAh battery provide a balance of power and playtime for casual listening scenarios. Choosing this product provides a single device capable of handling wireless streaming, radio listening, and offline media playback in a mobile format.

