Does it come with a changer?

No it does not but any mini charging plug (USB) will work. The battery life is good 8-9 hours but have never gotten 10 hours of use. FYI

My galaxy s9 phone doesn't see the earbud, so how do i get the faq guidance?

hi, the earbud can pair with galaxy s9. Please have a try again according to the following steps: press button about 3-5 seconds until you hear "ready to pair”， blue and red light blinking by turns, it's ready to pair, or it can't be found by your phone. If it can't help you, you could apply for return at your order page.

Can you actually see them in your ear? are the invisible two other people?

Yes others can see the Bluetooth

Single Bluetooth Earpiece | Desertcart Portugal

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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€ 27.47

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Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Stay sharp, stay connected—your ultimate hands-free edge.

ONE TOUCH MASTERY - Control calls, music, and redial with a single multifunction button—simplicity that keeps you in command without missing a beat.
FEATHERLIGHT COMFORT - Weighing just 0.15oz, this earpiece feels like a whisper in your ear, perfect for marathon meetings or long commutes.
SEAMLESS MULTI DEVICE SYNC - Effortlessly switch between two phones with multipoint Bluetooth connectivity—because your work and personal life deserve harmony.
TAILORED FIT FOR EVERY EAR - Ergonomic 'L' shape design with three ear tip sizes ensures a secure, personalized fit that stays put no matter the hustle.
ALL DAY POWER ZERO DOWNTIME - Up to 10 hours of uninterrupted calls and music with a quick 2-hour recharge—stay connected from dawn till dusk.

The NVAHVA Single Bluetooth Earpiece delivers up to 10 hours of wireless audio with a rapid 2-hour charge. Ultra-lightweight at 0.15oz and featuring an ergonomic 'L' shape with three ear tip sizes, it ensures all-day comfort and a secure fit. Multipoint Bluetooth allows connection to two devices simultaneously, while a multifunction button offers intuitive control over calls and music. Designed for professionals on the move, it’s sweatproof, waterproof, and compatible with smartphones, tablets, and PCs.

Specifications

ASIN	B07WCS71BX
Additional Features	Lightweight, Microphone Included, Multipoint Pairing, Sweatproof
Age Range Description	Adult
Antenna Location	Calling
Audio Driver Type	Dynamic Driver
Battery Average Life	10 hours
Battery Charge Time	2 hours
Best Sellers Rank	#21,003 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #99 in Single Ear Bluetooth Cell Phone Headsets
Bluetooth Version	4.1
Brand	NVAHVA
Brand Name	NVAHVA
Built-In Media	1 pc earpiecce, 1 pc usb cord (apx 7.6 inch), 1pc User Manual, 3pcs eartips
Cable Features	Without Cable
Color	Khaki/ nude
Compatible Devices	Smartphones, Tablets, Laptops, Desktops
Connectivity Technology	Wireless
Control Method	Touch
Control Type	Call Control
Controller Type	Touch
Customer Reviews	4.0 out of 5 stars 1,304 Reviews
Ear Placement	In Ear
Earpiece Shape	angular
Enclosure Material	Plastic
Form Factor	In Ear
Headphone Folding Features	In Ear
Headphone Jack	micro-usb
Headphones Ear Placement	In Ear
Impedance	16 ohm
Item Weight	4 g
Manufacturer	ZHONG YANG
Model Name	J18
Model Number	J18
Noise Control	Sound Isolation
Number of Items	1
Number of Power Levels	4
Series Number	18
Specific Uses For Product	audio, call microphone
UPC	791281229517
Unit Count	1 Count
Warranty Description	one year
Water Resistance Level	Waterproof
Wireless Technology	Bluetooth

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