| Specification | Technical Details |
| Brand | HOCO |
| Model | BK3 Cool Sound |
| Material Logic | ABS + Aluminum alloy |
| Wireless Version | V4.2JL |
| Speaker Diameter | 45mm |
| Battery Type | 1800mAh (Removable 18650) |
| Playback Logic | Wireless / TF Card (Max 32GB) |
| Charging Time | 3 Hours |
| Operational Time | 5 Hours |
| Audio Effects | KTV Reverberation |
| Dimensions | 235x88x88mm |
| Weight | 285g |
Professional KTV Reverberation Logic: Engineered by HOCO with an integrated echo effect matrix to provide a high-fidelity studio experience for vocal performances.
Dual-Mode Audio Interface: Features advanced Wireless V4.2JL connectivity and a high-capacity TF card slot supporting up to 32GB for versatile offline music playback.
Premium Aluminum Alloy Matrix: Constructed with a high-durability metal and ABS chassis to ensure superior structural integrity and acoustic resonance.
Removable 1800mAh Power Core: Incorporates a 18650-type battery system providing 5 hours of continuous music playing time with a convenient 3-hour recharge logic.
High-Performance 45mm Driver: Equipped with a specialized speaker diameter for clear, powerful sound projection in residential and social settings in Nepal.