Question 1

Will these work with Android phones?

Accepted Answer

They work with any phone or device that uses Bluetooth

Question 2

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

Accepted Answer

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.

Question 3

Appare the crystal buds supported by the tozo app?

Accepted Answer

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.

Question 4

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

Accepted Answer

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!

ASIN	B0BCFQY7ZY
Age Range Description	Adult
Audio Driver Type	Dynamic Driver
Battery Average Life	30 Hours
Best Sellers Rank	#241,700 in Electronics ( See Top 100 in Electronics ) #5,315 in In-Ear Headphones
Bluetooth Version	5.3
Box Contents	Eartip, TOZO Crystal Buds Wireless Earbuds, USB-C Charging Cable, User Manual, Wireless Charging Case
Brand Name	TOZO
Cable Features	Without Cable
Carrying Case Material	Crystal
Colour	T18-Black
Compatible Devices	bluetooth 5.3
Control Method	Touch
Control Type	Touch Control
Controller Type	touch control
Customer Reviews	4.2 4.2 out of 5 stars (2,750)
Earpiece Shape	Rounded Tip
Enclosure Material	Crystal
External Testing Certification	177202201739
Global Trade Identification Number	06971681317340
Headphone Form Factor	In Ear
Headphone Jack	usb
Headphones Ear Placement	In Ear
Impedance Unit of Measure	32 Ohms
Importer Contact Information	ATM RETAIL 1st Floor Beside P and T Building Lakdi Ka Pul Hyderabad Telangana 500004
Is Autographed	No
Item Weight Unit of Measure	48.4 Grams
Manufacturer	TOZO
Model Name	T18
Model Number	T18
Network Connectivity Technology	Wireless
Noise Control	Adaptive Noise Cancellation
Number of Items	1
Product Features	Fast Charging, Microphone Included, Sweatproof
Series Number	1
Specific Uses For Product	Music, Communication
Style Name	In-ear
Theme	Fantasy
Unit Count	1.00 Piece
Warranty Description	TOZO
Water Resistance Level	Waterproof
Wireless Technology Type	Bluetooth

TOZO Crystal Buds Bluetooth 5.3 True Wireless Stereo Earbuds IPX7 Waterproof in Ear Headset Call Noise Reduction Headphones with Digital Display and Transparent Case Long Standby Earphones Black

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