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Black rectangular karaoke speaker with two wireless microphones, LED lights, tabletop design

K-51 Karaoke System 2 Wireless Mics Bluetooth 5.0 Black

SKU CH-7P08-CB57Z

A portable karaoke system with two wireless microphones, Bluetooth 5.0 streaming and up to 10 hours of battery life

  • Power supplyBattery Powered
  • Additional connectorsUSB, TF card, AUX
  • Wireless microphoneWireless Microphone*2
  • Output power94.7 cubic inches
  • Package contentsMini Karaoke Machine*1, Wireless Microphone*2, USB Cable*2,
  • Key featuresMini Karaoke Machine*1, Wireless Microphone*2, USB Cable*2,
  • Duet-ready with two wireless microphones included
  • Bluetooth 5.0 pairs instantly up to 50 ft range
  • Rechargeable battery powers 6-10 hours of singing
  • Colourful LED lights plus five magic voice effects
  • Lightweight 360 g design works indoors or outdoors

Portable Karaoke System K-51

The K-51 is a battery-powered karaoke system that includes two wireless microphones, built-in stereo speakers and LED lighting. It is designed for families, children and adults who want a lightweight, tabletop unit for indoor gatherings or outdoor events where mains power is unavailable.

Two Wireless Microphones and Multi-Source Playback

The paired microphones connect automatically and allow two people to sing together for duets or parent-child sessions. Five selectable voice effects — monster, baby, female, male and original — change the vocal tone instantly. Audio can be streamed via BLUETOOTH 5.0 from phones, tablets, laptops or TVs, or played locally from USB drives and TF cards through the AUX input.

Simple Setup with Rechargeable Convenience

Power on the speaker, switch on both microphones and they link without manual pairing. The rechargeable battery delivers six to ten hours of playtime at half volume and recharges in two to three hours; the unit can also supply power to a phone or tablet. The speaker is not waterproof, so it must be kept dry during outdoor use.

How it compares

Measured against everything we stock in Karaoke Machines, at today’s prices. Recalculated every night.

Price $28.99
Cheaper than about 78% of the 159 comparable items (median $42.99).

Specifications

Product
Product lineK-51
Model nameK-51
Part numberK-51
Audio & video
Wireless microphoneWireless Microphone*2
Power
Power supplyBattery Powered
Output power94.7 cubic inches
Size & build
Product weight360 g
In the box
Package contentsMini Karaoke Machine*1, Wireless Microphone*2, USB Cable*2, User Manual*1

Questions about this item

How long do the rechargeable batteries in the K-51 speaker and its two wireless microphones last before they need replacing?

The built-in rechargeable battery delivers 6-10 hours of playtime at 50% volume and recharges in 2-3 hours; the same cells power both the speaker and the two wireless microphones, so no separate microphone batteries are required.

What runs out first during a long singing session — the battery or the BLUETOOTH 5.0 range?

The battery gives up after 6-10 hours at half volume, while BLUETOOTH 5.0 maintains its 50 ft link as long as power remains, so the battery is the practical limit.

How loud does the 94.7 cubic inch speaker get before the cooling fan becomes audible?

The 360 g K-51 has no cooling fan; its lightweight portable design relies on passive heat dissipation, so there is no fan noise at any volume level.

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