Product Review

ALTENG kids noise cancelling headphones are engineered to sound better, be more comfortable and easier to take with your Kid.
On-ear headphones design has padded soft cushions and noise reduction. Adjustable headband to ensure a perfect fit, and a lightweight design for kids age 3 and up. Foldable design for a more compact storage. Designed for kids, girls, boys, children, toddlers, school., so quiet that every note sounds clearer. Even air travel becomes enjoyable, as engine roar gently fades away.
No matter how noisy the world is, it's just you and your music-or simply peace and quiet.

Active Noise Cancelling Technology:
Build in ANC circuitry continuously measures, compares and reacts to outside noise-then cancels it with the opposite signal to make quiet sound quieter and music sound better.

Works in either mode :

It works in two modes, noise reduction state or common headset state. When battery runs out, it still works on common state.

Rechargeable battery :

Built in rechargabe 3.7V Lithium battery, easy to recharge it with the included micro USB cable without replacement.

Specifications

Input Terminals:DCΦ3.5DC Plug 4
Working Voltage: 3.7V
Noise Level: 18db-20db
Signal to noice ratio（SNR):≥90db
Power Supply: 120mAh lithium battery
Operating Time:ï¹¥ 20h
Speaker Diameter: 40mm
Speaker Frequency Response: 20Hz - 20KHz
Speaker Sensitivity: 115dB
Headphone Cable Length: 1.2M
Product Size: 7.9inch x 2.4inch x 6.3inch
Product Weight:0.4lb

Package Included:

1x Active noise cancelling headset
1x 3.5mm audio cable
1x Airplane joint
1x USB Charging cable
1x 1x Headset carrying case

Note: it's wired, no Bluetooth compatible