Will these work with Android phones?

They work with any phone or device that uses Bluetooth

The right earbud has no volume, and I've tried to reset the pair multiple times. How do I fix it?

TOZO’s customer service is second to none. I had a pair of NC-9’s, and the controls on the left earbud failed, though sound still came out. I re-paired, reset, tried everything to no avail. They were almost a year old. I contacted TOZO and explained the problem and what I’d done to resolve it. Within a few hours, I had a very polite and helpful response. They asked for my address, asked me what color I wanted, and within a week, new NC-9’s were on my doorstep. I was charged zero for shipping. I love my NC-9 earbuds, and the Crystals run a close second. I love everything about TOZO.

Appare the crystal buds supported by the tozo app?

They are supported but not like you'd think. These only allow for the equalizer control in the app as there is no ANC on these earbuds.

Are these comfortable and effective enough to wear while sleeping so that other people don't have to listen to my bedtime music?

In my opinion, they don’t work for sleeping, unless you completely sleep on your back. They stick out from my ears too much; they don’t lay flat enough to sleep on the side of my head at all. As far as disturbing your sleep partner, there are variables: - how deeply do they sleep? - how loud do you play iyour music? * I have both the Crystal earbuds and the NC9 ones. The NC9’s are flatter and much more comfortable. They fill the auricle of the ear more completely. I can sleep in them for awhile, and my husband doesn’t complain. But, he’s a pretty good sleeper. For your purposes, I think the NC9’s would be better, but that’s my ears! BTW, mine are the pre-2022 model. They’re very inexpensive now, since new ones came out. Good luck!

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Description

🎧 Elevate your audio game with TOZOT18 — where power, clarity, and style collide.

SEAMLESS LAG FREE AUDIO - Latest Bluetooth 5.3 ensures ultra-stable connection and rich, balanced sound with deep bass.
BUILT TO BRAVE THE ELEMENTS - IPX8 waterproof nano-coating means sweat, rain, or spills won’t slow your hustle.
CRYSTAL CLEAR CALLS ANYWHERE - 4-mic AI noise cancellation cuts through wind and noise for professional-grade call clarity.
TAILOR YOUR SOUND EXPERIENCE - 32 EQ presets + custom profiles via app let you join a global community of audio connoisseurs.
STAY POWERED ALL DAY BEYOND - Up to 9 hours per charge + 40 hours with wireless charging case keeps you unplugged through work and play.

The TOZOT18 earbuds combine cutting-edge Bluetooth 5.3 technology with a 40-hour total battery life and IPX8 waterproof rating, delivering premium sound and crystal-clear calls enhanced by 4-mic AI noise cancellation. Featuring a smart LED battery display and customizable EQ via app, these earbuds are designed for professionals who demand performance and style in every environment.

Specifications

Control Method	Touch
Control Type	Media Control
Unit Count	1.0 Count
Item Weight	48.4 Grams
Audio Driver Type	Dynamic Driver
Noise Control	Sound Isolation
Headphone Folding Features	In Ear
Earpiece Shape	Rounded tip
Headphones Ear Placement	In Ear
Style Name	Contemporary" or "Modern
Theme	Crystal Buds
Color	Black
Battery Average Life	9 Hour
Carrying Case Battery Capacity	31 Hours
Wireless Technology	Bluetooth
Bluetooth Version	5.3
Connectivity Technology	Wireless
Headphone Jack	Bluetooth
Water Resistance Level	Waterproof
Is Electric	Yes
Total USB 2.0 Ports	1
Antenna Location	Calling
Compatible Devices	IOS/Android mainstream phones
Cable Features	Detachable
Additional Features	Microphone Included
Enclosure Material	Crystal ABS PC
Specific Uses For Product	Music, Sport, Gaming

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