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Heattify™ Bluetooth Wireless Waterproof Earbuds UZ521

We are so confident that you will love our product that we will refund your purchase if you don’t. Pure and Simple!

Experiencing music underwater is no longer impossible!

IPX7 waterproof rating and secure fit lets you don't have to worry about rain, water, sweat. Perfect for the workout, outdoor sports, running, swimming.

Ergonomic and never-drop design. Ultra-lightweight with silicone earbuds guarantees comfortable wearing for a long time.

Smart touch control function, support switch songs, phone call and call voice assistant. The touch screen of wireless headphones is more sensitive, convenient and stylish.

  • HiFi 9D stereo sound with zero delays lets you experience the real world of 9D sound effects in all directions and play unimpeded in the game world. Premium speaker drivers deliver crisp, dynamic audio. Bose Active Noise Reduction Technology and sealed in-ear design limit background noise.
  • Bluetooth V5.1, support all Bluetooth-enabled devices with lower power consumption, better stability and intelligent noise reduction. Enjoy conversations over the phone or crisp clear sound of music.
  • Ultra-high battery capacity and duration: 2200mAh charging case can fully charge 2 earphones around 12 times, offer more than 50 hours of music time, and can be used as a USB power bank as well.
  • The Bluetooth earphones have a left/right ear separated design to support mono/stereo modes.


Bluetooth version: 5.1
Protocol: HFP 1.7 / HSP1.2 / A2DP 1 / AVRCP 1.6/ SPP1.2 / PBAP1.0
Noise reduction version: CVC8.0
Frequency range: 2.402GHZ ~ 2.480GHZ
Working distance: 35 feet (10m)
Waterproof: IPX7
Stereo Mode: HIFI 9D 
Charging input voltage and current: 5V Above 600mA
Headphone battery capacity: 50mAh
Charging compartment battery capacity: 2200mAh
Compatible: iOS, Android, Windows
Headphone charging time: 2 hours
Music playback time: 4-6hours
Talk time: 4-6hours

Package Included:

1*Pair of Wireless Earbuds (Left & Right)
1*Charging Case
1*Charging Cable
4*Ear cap
1*English User Manual