Q. I’ve enjoyed the TLOVII sonic toothbrush you recommended years ago, but replacement brush heads are getting hard to find and I think I’m ready to try something new anyway. Any recommendations?

—T.B., Beaver, Pennsylvania

A. I'll start with a sheepish admission. I recently had a cleaning and checkup but it had been over two years since...Read more

Q. I saw your article about the multiport USB charger and I'd like to purchase one. It was impossible to find and Amazon does not know when it will be in stock. Can you update your readers please?

—C.P., Milwaukee

A. I mentioned last week that I was looking for an alternative to the ZVOX earbuds that sold out so quickly, and over the past ...Read more

Q. Thanks for recommending the $19.99 ZVOX AV30 earbuds on closeout. I ordered them after reading your article and greatly enjoyed them while on vacation. Upon returning home I looked to order another pair for my wife, but found they were unavailable from either ZVOX or Amazon. (I had ordered mine directly from ZVOX.)

With the AV30s ...Read more

Q. Bouncing off the thrift store finds column, could you post a list of speaker brands to look for when thrift store/garage sale hunting? As a “not an audiophile” musician, I know there are quality brands I have never heard of.

—J.B., Concord, California

A. You are exactly right about quality speaker brands. The very best speakers tend ...Read more

Q. Our beloved Bose Wave radio has developed several issues to the point we can't use it anymore. The few places I've seen online that (allegedly) repair Bose radios charge an exorbitant price, so that's not an option.

Can you recommend a tabletop radio model that has good reception and sound quality comparable to the Bose? Bass and treble ...Read more

AiRunTech Waterproof Case: Just in time for summer fun, here is a great way to protect your phone around the water for less than $10.

One of my very favorite places to visit is the Cabana Bay Beach Resort at Universal Orlando, a hotel themed as a midcentury seaside resort from the 1950s and '60s. One of the highlights of Cabana Bay is a ...Read more

Q. The Cambridge Evo 75 you mentioned last week looks compelling, but I already have a streamer (a Cambridge model, in fact) and my budget is much less than $2,000. What can you recommend for about half that? I have Ohm MicroWalsh Tall speakers and was using a Marantz NR1504 receiver (now dead) in stereo mode. I will be playing CDs and using my ...Read more

Noise-canceling true wireless earbuds for $19.99: ZVOX is well-known for their sound bars with AccuVoice, which makes television dialogue easier to understand. They have also made headphones and earbuds that combine active noise cancellation and AccuVoice. The headphones are in their second generation, evolving from the AV50 to AV52 model, but ...Read more

Record Store Day: Record Store Day was last month, and over the next few weeks I will be recommending some great products to help you get the most from your used and new vinyl purchases.

Kicking things off is the Record Doctor X vacuum record cleaning machine. I used a nonmotorized, single-side vacuum Record Doctor for many years. I later moved...Read more

Q. I have seen you write about RF skin tightening before. Is there a certain age you should start or stop using it? What do you recommend?

—L.L., Kansas City, Missouri

A. RF skin tightening machines use radio-frequency energy to heat underneath the surface of the skin, stimulating the production of collagen and elastin to tighten sagging ...Read more

Q. It was cool to learn what TEAC stands for. Thanks, I never knew that! I saw that the TEAC PD-301-X CD Player/FM Tuner just has FM radio? No AM radio on the unit?

—J.L., Minneapolis

A. That is correct, no AM radio, only FM. Listening to AM seems to have fallen from consideration in the hi-fi world, and the PD-301-X is meant as a serious ...Read more

Q. Our daughter is graduating college and we are planning a party. We hired a DJ for her high school graduation party but would like to avoid that this time. She said she can create a custom playlist for the party and stream it via Bluetooth. Is there some kind of streaming speaker available that can cover an outdoor 12-by-14-foot dance floor? ...Read more

Q. Does anyone make a 36-inch or 37-inch TV? I can’t find anything available between 32-inch and 43-inch sets. We have an entertainment center with a 32-inch TV and the space won’t fit anything above 37 inches.

—J.S., Maplewood, Minnesota

A. I have not seen anything available recently between 32 and 40 inches. You will have to stay with ...Read more