W-KING K40 220W RMS Karaoke Bluetooth Speaker

K40 220W Stage Monitor Combo Amplifier – Multi-Scene Performance Speaker for Live Music, Karaoke & Streaming

The W-KING K40 portable combo amplifier is a professional wedge-shaped stage monitor speaker crafted for singers, guitarists, live streamers and small outdoor performances. Its tilted cabinet design lets musicians clearly hear their own vocals and instrument sound on stage, paired with layered full-frequency audio, RGB decorative lighting and practical all-in-one functions to cover band rehearsals, street gigs, home karaoke and content creation.

Balanced 220W Full-Frequency Audio Driver System

Boasting 220W peak power, the K40 adopts a complete three-unit full-frequency driver layout to deliver natural, uncolored monitoring sound. It is equipped with one powerful 8-inch woofer that generates solid, controlled low-frequency bass without overwhelming mid-range vocals—perfect for acoustic guitar, pop vocals and light band tracks. Two 2.75-inch mid-high tweeters work alongside two dedicated full-frequency drivers to restore clear vocal details, crisp instrument overtones and smooth treble. The wedge monitor cabinet eliminates sound reflection interference, so performers get accurate, balanced audio feedback for pitch control during singing and instrumental playing, free of muddy distortion even at medium-high volume.

21700 Large-Capacity Battery with Charge-While-Playing Function

Powered by an 18.5V 9000mAh lithium battery built with durable 21700 cells, the K40 supports long-duration off-grid performances for outdoor shows and street live streams. Its exclusive charge-while-playing design allows you to plug in power and recharge the speaker mid-use, completely avoiding sudden power failure that interrupts performances. Stable continuous power output maintains consistent sound volume and tone for multi-hour rehearsals, busking and karaoke parties far from wall power outlets.

Comprehensive Professional Performance Functions

Designed specifically for performers and creators, the K40 integrates stage-focused practical features:

• 3 independent channel inputs: Separate ports for microphones, musical instruments and background playback audio, with independent volume adjustment for each channel to mix vocals, guitar and backing tracks freely
• Professional full control panel: Dedicated physical knobs for master volume, bass, treble, mic echo and channel gain, enabling instant on-site audio tuning to adapt indoor and outdoor acoustic environments
• Built-in monitor speaker wedge cabinet: Unique angled body acts as stage floor monitor, letting performers hear clear self-feedback without extra auxiliary speakers
• Dynamic RGB LED decorative light ring: Color cycling ambient lighting on the side panel boosts party atmosphere for karaoke, live streaming and casual performances
• OTG lossless live streaming: Plug-and-play sound card function connects to phones, laptops and cameras to record high-fidelity live singing, band covers and broadcast content
• Dual UHF wireless microphones included: Stable anti-interference wireless mics support duet singing, hosting and stage speeches without tangled cables

Compact Wedge Monitor Cabinet

Measuring 39.8cm (Width) × 37.6cm (Height) × 29.3cm (Depth), the K40 features a lightweight tilted wedge cabinet optimized for stage placement. Reinforced shockproof shell and metal mesh grille fully protect internal drivers during transport to rehearsal rooms, street venues and small event stages. Two color options (black, red) match different performance styles, and its moderate size is easy to carry and store when not in use.

Whether you need a personal stage monitor for band rehearsals, portable sound gear for street busking, home karaoke equipment or a streaming audio hub, the K40 220W combo amplifier delivers accurate monitoring sound, long battery endurance and all creator-focused functions, becoming an essential portable audio companion for amateur and semi-professional performers.