Why do my vocals lag behind the lyrics when I connect a karaoke machine to my Smart TV via Bluetooth?

Standard Bluetooth audio introduces 150 to 250 milliseconds of encoding delay—fine for passive music listening, but fatal for live singing. Always let your karaoke machine's built-in speaker play your vocals and backing track directly, and use HDMI (Ikarao Shell S1, Singing Machine ISM9025) or WiFi screen casting (ISM9011) only to display lyrics on the TV.

Should I get a karaoke machine with a built-in screen or use a tablet/TV?

A built-in 10.1-inch HD touchscreen (like the Ikarao Shell S1) is the fastest plug-and-play setup because nobody has to surrender their phone or fumble with cables, and it still has an HDMI port when you want lyrics on a big TV. If you want maximum outdoor bass per dollar, pair your existing tablet with the 8-inch TONOR K20 PA speaker.

How many microphones come in the box?

Six of our top picks (Ikarao Shell S1, TONOR K20, TONOR K6, TONOR K9, Singing Machine ISM9011, and ISM9025) include 2 microphones right in the box for duets. The SML385BTW and VTech Kidi Star include 1 wired mic.

Brands:All Brands Ikarao TONOR Singing Machine VTech JBL PartyBox Bose S1 Pro+ION Audio Fender Audio

Brand-by-brand guide · 8 brands

Compare Portable Karaoke Machine Brands: Lineups, Specs & Trade-Offs

Explore how each brand positions its lineup, which buyer it serves best, and how its specifications stack up against competing manufacturers.

All 8 portable karaoke machine brands

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All-in-One Smart Touchscreen

Ikarao

Specializes in smart touchscreen karaoke systems like the Shell S1 with dual 3.5" woofers, 280W peak output, HDMI out, and self-charging wireless Bluetooth mics.

Best for: Built-in 10.1" tablet + self-charging mics

1 model · View lineup →Rolling PA & Portable Dual-Mic

TONOR

Audio microphone specialist offering the rolling 250W K20 PA speaker (8" subwoofer + 2 wireless mics), compact K6 RGB speaker, and K9 kids mini dual-mic cube.

Best for: High-output 8" PA (K20) & compact party (K6/K9)

3 models · View lineup →TV Casting, Pedestal & CD+G

Singing Machine

Longstanding home karaoke brand covering WiFi touchscreen pedestals (ISM9025), wireless TV casting hubs (ISM9011), CD+G Bluetooth units (SML385BTW), and wired dynamic mics.

Best for: Smart TV WiFi casting & classic home setups

3 models · View lineup →Interactive Kids Stand Systems

VTech

Builds child-safe interactive sing-along systems like the Kidi Star with vocal-reduction modes, rhythm games, and a 3-to-4-foot adjustable stand.

Best for: Ages 5–9 adjustable mic stand + games

1 model · View lineup →High-SPL Party Speakers

JBL PartyBox

Reference benchmark for large party speakers; compare against Ikarao Shell S1's built-in lyrics screen and TONOR K20's lighter rolling PA frame.

Best for: Heavy bass benchmark comparisons

Compare against our picks →Pro Portable PA

Bose S1 Pro+

Reference benchmark for solo acoustic performers; compare against dedicated dual-mic home karaoke systems with lyrics screens.

Best for: Acoustic gig benchmark comparisons

Compare against our picks →Tailgate Rolling Speakers

ION Audio

Popular tailgate speaker lineup; compare against TONOR K20's included dual UHF/wireless karaoke microphones.

Best for: Tailgate PA benchmark comparisons

Compare against our picks →Stage Monitors & Mics

Fender Audio

Pro stage benchmark; compare wired dynamic backup mics like the Singing Machine SMM-205.

Best for: Wired vocal clarity benchmarks

Compare against our picks →

Cross-brand benchmarks

Top-ranked models across brands

All-in-One Touchscreen & TV HDMI OutIkarao Shell S1 Smart Karaoke Machine — 10.1" Touch Screen, 280W Peak & 2 Self-Charging MicsSmart Touchscreen Karaoke · Flagship

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Backyard Parties, Basements & Crowd VolumeTONOR K20 Portable PA Karaoke Machine — 250W Peak, 8" Subwoofer, Rolling Wheels & 2 Wireless MicsRolling 8" Subwoofer PA · Premium

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Putting HD Lyrics on Your Living Room Smart TVSinging Machine ISM9011 WiFi Cast Karaoke System — Wireless Smart TV Lyrics Casting & 2 MicsWireless Smart TV Cast System · Mid-Range

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Travel, Dorms & Small Living Room DuetsTONOR K6 Portable Bluetooth Karaoke Machine with 2 Wireless Microphones & RGB Light RingCompact Grab-and-Go Dual-Mic · Mid-Range

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Stand-Up Pedestal Controls + HDMI to TVSinging Machine ISM9025 WiFi Touch Screen Pedestal Karaoke System (7" HD Screen, HDMI Out)Pedestal WiFi Touchscreen · Premium

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Kids Ages 4–12, Sleepovers & Road TripsTONOR K9 Mini Karaoke Machine for Kids — 2 Wireless Mics, 5 Voice Effects & LED LightsUltra-Portable Kids Dual-Mic Cube · Value

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