These Bluetooth 5.1 Earphones 3500mAh Charging Box Running or even swimming while listening to music is made possible by water- and sweat-proof Bluetooth wireless earbuds!

Forget about conventional charging and concentrate on another century-defining innovation. Compatible with iOS and Android operating systems, wireless headphones with microphones are incredibly convenient and comfortable.
You can use the touch control buttons on the Bluetooth headphones to answer and end calls, play and pause music, skip tracks, and enable voice control of the phone with a single motion.

High-Quality Sound - Stereo headphones can produce high-fidelity stereo sound and bass that are amplified. Anyone can improve their music listening experience. The sound quality of these wireless Bluetooth headphones is excellent. Enjoy the HIFI scene and the immersive 9D stereo surround-sound effect.
Wide Compatibility and Smart - Regardless of brand or mode, it can be paired with any mobile phone that supports Bluetooth functionality. The charging cabin and headset's electricity levels are intuitively apparent at a quick glance.
Large Capacity Charging Cabin - Can be used to charge earphones or mobile phones from a range box.

Features:

• Style: In-Ear
• Bluetooth: V 5.1
• Bluetooth Profile: A2DP, AVRCP, HFP, HSP
• Communication: Wireless
• Working Voltage: 3.1V~4.2V
• Charging Voltage: 5V-1A
• Frequency Response Range: 20 - 20000 Hz
• Headset Battery Capacity: 50MAH
• Storage Box Battery Capacity: 3500MAH
• Transmission Distance: >10M
• Headphone Pads Material: Silicone
• Sensitivity: 120dB
• Call Time: 4-5h
• Play Time: 4-5h
• Waterproof: IPX4

Package Includes: 

• 1x Bluetooth 5.1 Earphones 3500mAh Waterproof Charging Box