RHM K666 Karaoke Machine with Powerful & Clear Sound, 2 Wireless Microphones, Rechargeable Battery, 8 Hours Playtime, Support Bluetooth/AUX/USB/PC…

Rated 5.00 out of 5 based on 5 customer ratings

(5 customer reviews)

Last updated on 19/10/2025 01:26 Details

【SUPPER PORTABLE, WITH POWERFUL & CLEAR SOUND】: The K666 size is only 13.86X7.87X6.89 inches, very sturdy and well built. Equipped with 2*15W tweeters & a 30W subwoofer makes it produce very clear and loud sound! The bass is so rich and deep and you can feel the vibrations! DSP chip inside the machine will achieve full-range surround stereo sound
【CONTROLLING ALL FUNCTIONS VIA BUTTONS ON THE WIRELESS MICROPHONES】: Comes with 2 wireless microphones and made of metal material. They have controls for a speaker volume, mic volume, echo and voice enhancement. No running to the base unit to adjust volumes, very convenient. Besides, there is a 400mAh rechargeable battery built in which lasts for up to 6 hours
【VERY MOBILE TO TAKE ANYWHERE】: Built-in a sturdy handle allows you to take the karaoke machine with 2 microphones everywhere. It has all the capabilities and convenience of the other machine but sturdier and easy to transport without fear of damaging it. In addition, the K666 is equipped with a 4400mAh recharge battery, only takes about 3 hours to fully charge and can be used about 8 hours, great for home, BBQ, car rides, etc
【SUPPORT MULTIPLE CONNECTIONS WAYS】: Easy connectivity via Bluetooth/3.5mm Aux In/USB Drive/PC by many external devices like iPhone, Android mobile phones,iPad, TV, PC, etc
【EASY TO SET UP】: Set up is simple. The mics that come with the system come already synced up so it’s plug and play. There is a really handy stand built in that is perfect for a phone or a tablet so you don’t need to hook it up to a TV
【PACKING LIST】: The package comes with a karaoke machine, 2*wireless handheld microphones, power adapter, a charging cable, an AUX cable, and a user manual. (Warm tips: Keep the microphone and the machine within 10ft will achieve the best voice effect.)

Item Weight	7.7 pounds
Product Dimensions	14 x 8 x 8 inches
Item model number	4334420826
Batteries	6 Lithium Ion batteries required.
Is Discontinued By Manufacturer	No
Date First Available	November 4, 2017
Color Name	K666
Compatible Devices	iPhone,Android mobile phone,iPad,TV,PC
Connector Type	USB 2.0
Speaker Count	1
Size	13.86X7.87X6.89 inches
Battery type	Lithium Ion
Media Format	Karaoke
Power Source	Battery Powered
Voltage	15 Volts (DC)

5 reviews for RHM K666 Karaoke Machine with Powerful & Clear Sound, 2 Wireless Microphones, Rechargeable Battery, 8 Hours Playtime, Support Bluetooth/AUX/USB/PC…

Rated 5 out of 5

Nathan M. – 25/07/2025

I LOVE this machine. Upon arrival the box seemed much bigger and heavier than I was expecting–and that is because it was. It is still very portable, but again, it is bigger than it looked in the pictures. It is a beefy unit with front facing speakers and a downward facing subwoofer. It really does sound great and once I start singing (I use the new Apple Sing function on Iphone) I can’t stop for hours.
The mics have a substantial weight and I love the built in reverb and equalizers. I was on the fence due to the price so when it went on sale for around $240 I pulled the trigger. I do NOT regret it. SO MUCH FUN and I love how my voice is sounding. If you’ve wanted to be able to practice your Karaoke skills in privacy before you knock em dead in public, this is the one, plus it doubles as a great speaker with room filling sound when you’re not belting out your best rendition of “You Ain’t Woman Enough.” RIP Loretta!
Rated 5 out of 5

Megan Baja – 12/09/2025

Increíblemente fácil de usar y conectar ya que ademas de bluetooth viene con varios cables que permiten conectar a cualquier dispositivo fácilmente. La bocina emite sonido potente porque cuenta con materiales de gran calidad, sonido espectacular y muy potente volumen. El envío super a tiempo. Altamente recomendado!!
Rated 5 out of 5

Suki – 20/09/2025

This was a second attempt to buy a good karaoke machine. The last one, Masingo brand, the mics didn’t allow any kind of distance from the base. More than 2 feet away and the mics would stop working. After reading some reviews, I gave this one a go. Boy am I glad i did! First of all, I really like the compactness and portable nature of this unit. Very easily schlepped around. The unit is very sturdy and well built, don’t see anything external breaking soon. Had no problem connecting our devices via bluetooth. The sound is amazing! The sound is clear with a good bass, perfect for a house party or backyard party. The mics are fantastic! They have controls for a speaker volume, mic volume, echo and voice enhancement. The only time the mics cut out was when someone other than the singer was standing right in front of the speaker blocking the signal to the singer. The unit says that mics can reach up to 10 meters. In reality, the singers would and should be closer than this distance. We had no issues with being about 15 feet away from the speaker. The unit comes with the standard wires to plug into the wall and/or usb ports for power and charging. Haven’t had the unit long enough to test battery life from a charge. This unit was totally worth the extra money. Hopefully, it will hold up in the long run.
Rated 5 out of 5

J. Busby – 24/09/2025

After doing a considerable amount of research, I bought this Karaoke Machine last year and could not be happier with my purchase. It’s not my first one as I bought another highly rated system 3 years ago that only lasted a year and was slightly more expensive. The sound quality on this RHM speaker is impressive and a good quality karaoke machine with 2 wireless mics is hard to find. The system is extremely user friendly, comes with simple instructions and has provided my family and friends hours of fun! I love how easily transportable it is, so it’s not a hassle to bring it anywhere and it holds a substantial charge. So much so, that when I didn’t use it for awhile, I forgot what the charger looked like and tried to charge it up not knowing I was using a different charger. I contacted the company who QUICKLY responded and helped me troubleshoot the problem. I realized I must have misplaced/lost the original charger. Though it’s my mistake, they are kindly sending me a new charger. Honestly, I don’t write reviews very often but the customer service was so outstanding, that I had to share. Great product and next level customer service!
Rated 5 out of 5

Nathan M. – 29/09/2025

We were pleasantly surprised with the sound of this karaoke machine. It sounds great, and has impressed relatives that have used our machine. Overall, it is a pretty solid karaoke machine.

However, about six months after purchasing the machine, one of our microphones stopped working. I contacted their Customer Service Support, Gina Ma, and have since been blown away by her outstanding customer service. When I reported that our microphone stopped working, she replied almost instantaneously and asked that I provide a video of the issue, so that they may assess whether they could assist in fixing it or send a replacement altogether. In just a short period of time, she reached out to me with the tracking number of our new microphone. Coincidentally, when we received the replacement microphone, our other microphone stopped working as well. Again, I reached out to Gina Ma with a video of the new issue. She responded right away, and after assessing the video, informed me that they will be sending another replacement microphone. I have been very impressed with Gina Ma’s customer service and I am happy to have this machine.