*WSTER Wireless Bluetooth Speaker with 20W Power (20W×2) Extra Bass, 8000mAh Battery, RGB Lighting and Shoulder Strap (Model JC-830)*

Powerful surround sound and deep bass designed to ignite parties and events. The wireless speaker *WSTER EXTRA BASS SOUNDWAVE Model JC-830* offers a complete audio experience that combines high-performance sound power and dynamic visual effects via a colorful and animated *RGB Light* strip at the top. The device features a durable cylindrical design equipped with a fabric shoulder strap for easy carrying in outdoor activities and trips.

The speaker pulsates with dual audio drivers measuring *3 inches each (3"_2)* giving you a total power output of *40 watts (20W_2 / 8R)* to fill the place with pure tones and precise audio details with a wide frequency response range from *50Hz to 18KHz* and an ultra-pure signal-to-noise ratio exceeding *80dB*. The device operates with a giant lithium battery with a capacity of *8000mAh ( $7.4V / 4 x 2000mAh$)* to give you a long operating time of up to *15 hours*, with support for the latest wireless connection standards *Bluetooth V5.3* with a coverage range of up to *10 meters*. It also provides various playback options including *FM radio*, *TF card* reading, *USB* flash drives, *AUX* wired input, and *TWS* dual wireless pairing feature.

*Approved Features and Technical Specifications:*

*Brand and Model:* WSTER Model JC-830 *(Product number: JC-830 / EXTRA BASS SOUNDWAVE).*

*Speaker Drive:* Dual speakers measuring 3 inches x 2 *(3"_2).*

*Rated Power:* Total power 40 watts *(20W_2 output / 8 ohm impedance 8R).*

*Wireless Standard:* Bluetooth version *BT V5.3* for fast and stable connection.

*Transmission Distance:* Up to *10 meters (10M).*

*Frequency Response:* From *50Hz to 18KHz.*

*Audio-to-noise ratio:* $\ge 80\text{dB}$.

*Battery Specifications and Power Source:*
- *Battery capacity:* 8000 mAh *( $7.4V / 4 x 2000mAh$).*
- *Built-in voltage:* 7.4V.
- *Play Time:* From 5 to 15 hours at normal volume level.
- *Charging voltage:* DC 5V/2A.
- *Charging Time:* From 5 to 8 hours.

*Dimensions, Weight and Colors:*
- *Product dimensions:* $300 \times 124 \times 140\text{ mm}$.
- *Net device weight:* Approximately 1813 grams (1.81 kg).
- *Available color options:* Black *(Black)*, Beige *(Beige).*

*Ports and Playback Media (Interface icons):*
- Wireless Bluetooth connection *(BT).*
- Built-in *FM Radio.*
- Memory card port *TF Card.*
- Flash storage unit port *USB.*
- Fast charging port *Type-C.*
- External wired audio input *AUX.*

*Smart Technologies and Features:*
- Dual wireless audio technology *(TWS)* to sync two speakers together.
- Built-in microphone for making phone calls clearly *(Handsfree).*
- Top strip for interactive *RGB Light* lighting with multiple colors.
- Durable fabric hanging and carrying strap fixed with side metal rings.

*Compatibility and Daily Use Benefits:*
- *Compatibility and Supported Devices:* Compatible with all smartphones *(Apple iOS and Android)*, tablets, laptops, smart screens, with the ability to connect wired via AUX port and read storage media directly.
- *Approved Usage Environments and Occasions:*
    - Home parties and gatherings *(Party).*
    - Dancing and street performances and outdoor activities *(Street dance).*
    - Karaoke and singing sessions *(KTV).*
    - Wedding occasions and halls and celebrations *(Wedding scene).*
- *Portable Design Advantages:* Durable structure with domed design supported by a wide adjustable shoulder strap that is easy to carry on the shoulder while moving and camping, with prominent and easy-to-reach top control buttons.
- *Practical Daily Benefits:* A giant 8000mAh battery that lasts up to 15 hours ensures the party continues without interruption, and a true 40W sound power that saves you from bulky sound systems, with the ability to answer calls at the push of a button.