The sound of my friend's phone connected to my bluetooth speaker becomes quieter,but the sound of my mobile phone connected to bluetooth is louder?

Dear customer, hello! Thank you very much for your question. We understand that sometimes some settings of the mobile phone may affect the volume performance of the Bluetooth speaker. But you can increase the volume of the Bluetooth speaker according to the steps on the picture: After you turn off this setting, the volume of the Bluetooth speaker will become louder.

What is the reason why the volume suddenly drops by half during my use?

hello, thanks for asking Our battery protection system will automatically adjust the volume and reduce the power to ensure that the battery is not damaged when the battery power is too low but the power remains the same and the voltage peak value cannot be reached. It is a means of protecting the battery

How to use TWS function?

Hi, Step1 Turn on these two speakers. Step2 Long press one of the TWS buttons on both machines. Step3 Wait for a few seconds, when the speaker prompts "TWS paired", it means the two speakers are connected successfully.

When i plug my mic in i get terrible feedback. does anyone else have this issue? or know how to fix?

If you are in front of the speaker when you are speaking, the sound is going into the mic creating the feedback. When you are speaking be sure you are behind the speaker. Another thing that may help if you’re still experiencing even a little feedback which no one ever likes, buy a pop filter for your mic which will reduce the chances of unwanted sound entering your mic

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YIER Bluetooth Speakers, Wireless TWS Portable Speaker with Lights,100dB Loud Subwoofer 80W(Peak) Stereo Sound, Bassup Technology,18-Hour Playtime for Outdoor Party

YIER Bluetooth Speakers, Wireless TWS Portable Speaker with Lights,100dB Loud Subwoofer 80W(Peak) Stereo Sound, Bassup Technology,18-Hour Playtime for Outdoor Party

Product ID: 625821897

Details

Brand
YIER
Speaker Maximum Output Power
200 Watts
Connectivity Technology
Auxiliary USB
Audio Output Mode
Surround
Mounting Type
Freestanding

🎵4 Drivers for Clear Stereo

🔊80W Peak Power

🔋18-Hour Playtime

Description

🎉 Turn Up the Volume, Turn On the Vibes!

SEAMLESS STEREO PAIRING - Bluetooth 5.0 enables instant TWS pairing for immersive 160W stereo surround sound that transforms any space into a live concert venue.
ALL DAY WIRELESS FREEDOM - Enjoy up to 18 hours of uninterrupted playtime on a single charge, perfect for long outdoor gatherings and spontaneous adventures.
PREMIUM WOODEN ENCLOSURE - Crafted with a natural wood frame to minimize distortion and amplify richer, clearer sound—because quality materials matter.
CONCERT LEVEL SOUND ANYWHERE - Experience 80W peak power with 4 precision-tuned drivers delivering crystal-clear highs, tight mids, and deep bass without distortion.
BASSUP TECHNOLOGY FOR PARTY VIBES - Activate the Bass button to unleash rich, punchy bass that energizes your outdoor parties, complemented by a dynamic rhythm light show.

The YIER Bluetooth Speaker delivers powerful 80W peak stereo sound through 4 expertly engineered drivers housed in a premium wooden enclosure. Featuring advanced Bluetooth 5.0 for effortless TWS pairing, Bassup technology for enhanced bass, and an 18-hour battery life, it’s designed to elevate any indoor or outdoor party with immersive audio and vibrant light effects.

Specifications

Material	Wood
Model Name	YIER
Speaker Type	Subwoofer
Special Feature	Bass Boost, Stereo Pairing, USB Port
Recommended Uses For Product	For Indoor Use
Compatible Devices	Desktop, Karaoke Machine, MP3 Player, Smartphone, Television
Subwoofer Diameter	4 Inches
Net Quantity	1.0 count
Surround Sound Channel Configuration	2.0
Colour	Black
Included Components	1 x AUX 3.5mm Audio, 1 x USB-Type Cable, 1 x User manual, 1 x Wireless Portable Speaker
Is Waterproof	FALSE
Number of Items	1
Control Method	Touch
Wireless Communication Technology	Bluetooth
Speaker Size	4 Inches
Power Source	Battery Powered
Brand Name	YIER
Colour Name	Black
RMS Power Range - Speakers	60 Watts
RMS Power Range - Amplifiers	80 Watts
Output Channels	4
Signal-to-Noise Ratio (db)	100 dB
Product Dimensions	20.32 x 16.51 x 27.43 cm; 3.1 kg
Batteries	4 Lithium Ion batteries required.
Item model number	1483901
Manufacturer	YIER
Item Weight	3 kg 100 g

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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