We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Blue over-ear headphones with yellow accents, padded earcups, headband, LED lights, MicroSD slot, 3.5mm cable

Contixo

Contixo KB-300 Blue headphone 85dB limit Bluetooth 9hr battery 3.5mm AUX MicroSD FM LED

SKU CH-H8AY-NQKWH MPN KB-300 Blue

Over-ear headphones with 85 dB volume limit, Bluetooth, 9-hour battery, 3.5 mm cable, MicroSD player, FM radio and LED lights

  • Connection3.5 mm
  • Wearing styleCircumaural
  • Cord length< 3.0 ft
  • Noise cancellationPassive
  • Wireless technologyBluetooth
  • Battery packMax 9hrs (CONTINUOUS COMMUNICATION TIME)
  • Volume limited to 85 dB for safe listening
  • Bluetooth wireless range up to 30 ft
  • Built-in MicroSD player and FM radio
  • 5 mm wired connection for any device
  • LED lights and microphone for calls

Safe Listening for Children

The Contixo KB-300 Blue is an over-ear headphone designed for children aged three and older. A built-in limiter caps output at 85dB to protect developing hearing. It connects wirelessly via Bluetooth or through a 3.5mm cable for broad device compatibility.

Wireless Range and Wired Fallback

Bluetooth provides a wireless radius up to 30ft (10m) for freedom of movement around a room. The battery delivers up to 10 hours of operation and recharges in about 2 hours. When power runs low the included 3.5mm AUX cable enables passive listening without any battery drain.

Standalone Playback Upgrade

A MicroSD card slot and FM radio let the headphones play music without a paired phone or tablet. This replaces the need to hand a child a separate media player or smartphone. The jump is worth it when you want independent, screen-free listening with volume safety built in.

How it compares

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

Price $21.99
Cheaper than about 57% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameContixo
Product lineKB-300
Model nameKB-300
Product typeOver the Ear
Product colorBlue
Audio & video
Wearing styleCircumaural
Noise cancellationPassive
Connectivity
Wireless technologyBluetooth
Ports & slots
Connection3.5 mm
Power
Battery packMax 9hrs (CONTINUOUS COMMUNICATION TIME)
Run timeMax 9 hrs
Charging timeMax 2 hrs
Built-in batteryYes
Size & build
Cord length< 3.0 ft
Product weightApprox. 4.8 oz
Shipping weight0.27 kg
Package size229 × 193 × 48 mm
Compatibility
Compatible withCellphones, Tablets, Laptops, Gaming Consoles
More details
Team affiliation1 Packs

Questions about this item

Should I pick the Blue KB-300 or another colour for my child?

The Blue KB-300 model includes the 85dB volume limiter, Bluetooth wireless, MicroSD player, FM radio, 3.5mm wired option and LED lights; other colours share the same features so choose the shade your child prefers.

How loud will the 85dB limit actually sound when my child is watching a video?

The built-in limiter caps output at 85dB, roughly 80 percent of typical maximum volume, keeping listening levels within the recommended safe range for children aged three and up.

What does the 3.5mm connector let me do that Bluetooth cannot?

The 3.5mm AUX cable works with any device that has a headphone jack — consoles, older laptops, in-flight entertainment — without pairing or battery drain.

More in Earbuds & Over-Ear Headphones

Similar items