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Blue over-ear kids headphones with LED lights, foldable design, soft earpads

Tronsmart

Tronsmart KH03 Kids Bluetooth 5.3 ANC Headphones Blue 70h

SKU CH-208M-6EMSZ

Over-ear Bluetooth 5.3 headphones with active noise cancellation, 70-hour battery, 93 dB volume limit and LED light modes

  • Driver size40 mm Dynamic Driver
  • Frequency range20 Hz-20 kHz
  • Impedance32O
  • Signal-to-noise ratio=60 dB
  • Power supplyBuilt-in Lithium Battery, Input 5 V/500 mA
  • Audio sensitivity98 dB±3 dB

Content ANC Wireless-Blue

  • Active Noise Cancellation blocks background sound for focused listening
  • Kid-safe volume limit set at 93 dB protects young hearing
  • Bluetooth 5.3 gives stable wireless connection up to 70 hours playtime
  • 40 mm dynamic drivers deliver 20 Hz–20 kHz frequency response
  • Lightweight 0.54 lb foldable design with protein earpads for comfort

Tronsmart KH03 Kids Bluetooth 5.3 ANC Headphones

These over-ear headphones are built for children who need wireless audio with active noise cancellation and a strict volume limit. They suit home learning, travel and everyday listening on tablets, smartphones or PCs. The foldable frame and protein earpads keep long sessions comfortable for younger users.

Wireless ANC with 70h battery and 3.5mm backup

Bluetooth 5.3 handles the wireless link while the built-in lithium cell delivers up to 70 hours of playtime between charges. A 3.5mm cable is included for wired use when the battery runs low or when a device lacks Bluetooth. Active noise cancellation reduces background sound so the listener can focus on lessons or media.

Replaces basic kids headphones that lack ANC

The jump is worth it when a child regularly studies in noisy rooms, flies often or needs hearing protection capped at 74dB, 85dB or 93dB. It is not for buyers who want more storage, builders who need a second card, or anyone requiring a detachable boom microphone for competitive chat.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $23.99
Typical for this category: the median of 7,078 items is $25.99.

Specifications

Product
Brand nameTronsmart
Product lineKH03
Model nameKH03
Part numberKH03
Product typeHeadphones
Product colorBlue
Performance
Supported distance49 ft (14.9 m)
Audio & video
Driver size40 mm Dynamic Driver
Frequency range20 Hz-20 kHz
Impedance32O
Signal-to-noise ratio=60 dB
Audio sensitivity98 dB±3 dB
Wearing styleOver-the-Ear
Noise cancellationActive Noise Cancellation (ANC)
Mic impedance2.2kO
Mic frequency response100 Hz-10 kHz
Mic signal-to-noise ratio=58 dB
Mic sensitivity-42 dB±3 dB
Connectivity
Wireless technologyBluetooth 5.3
Ports & slots
Connection1/8 in (3.5 mm)
Power
Power supplyBuilt-in Lithium Battery, Input 5 V/500 mA
Battery pack70 h
Run time70 h
Charging time2.5 h
Built-in batteryYes
Size & build
Cord lengthNO
Product weight0.54 lb (0.24 kg)
Compatibility
Compatible withWindows, Mac, iOS, Android, Tablet
Supported platformsYes
In the box
In the box1 x Tronsmart KH03 ANC Wireless Kids Headphones, 1 x Warranty Card, 1 x User Manual, 1 x Type-C Cable, 1 x Aux-in Cable

Other versions of this model

3 more in the same range

Questions about this item

How long does the 70-hour battery last with ANC on all day?

The built-in lithium battery delivers 70 hours of playtime; ANC use will reduce that figure, but no separate ANC-on rating is published.

What is the noise level and heat output when the headphones run continuously?

Passive over-ear design produces no fan noise or measurable heat; only the 40 mm drivers and ANC circuitry operate, both staying cool during extended wear.

Which devices can I connect to the 3.5 mm jack for wired listening?

Any source with a standard 3.5 mm audio output — PC, tablet, smartphone, or in-flight entertainment system — works in wired mode with volume limited to 85 dB.

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