i12 TWS Wireless Earbuds Pods For Apple Cell Phone 2019 rechargeable headphone | Magic charging case
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Headphone DescriptionFeatures of wireless headphone:
Charging Case: Recharge both earbuds at the same time whenever whereverBuilt-in Microphone technology:headphone which can be used for listening music as well as you can talk on calls by using the same Hands-Free:True wireless bluetooths design,you can freely take earbuds out everywhere,especially when in running,walking or bicycing,driving. Charging Case 200~600mAh
Frequency response 20-20000Hz
Bluetooths distance 10 meters
Charging voltage DC5V
Talking time about 1-3 hours
Music time about 1-3 hours

Noise-cancelling function:
Noise-cancelling headphones are headphones that reduce unwanted ambient sounds using active noise control. This is distinct from passive headphones which, if they reduce ambient sounds at all, use techniques such as soundproofing.
Noise cancellation makes it possible to listen to audio content without raising the volume excessively. It can also help a passenger sleep in a noisy vehicle such as an airliner. In the aviation environment, noise-cancelling headphones increase the signal-to-noise ratio significantly more than passive noise attenuating headphones or no headphones, making hearing important information such as safety announcements easier Noise-cancelling headphones can improve listening enough to completely offset the effect of a distracting concurrent activity.
Headphone Images