Headphones — JBL JUNIOR 320

The Junior 320 is a wired over-ear headphone from JBL, built for younger listeners with a deliberately capped sensitivity figure. JBL's Junior range is specifically designed for children, generally incorporating volume-limiting technology to protect young listeners' hearing alongside more durable, kid-friendly build materials than a typical adult headphone.

Position in line

It sits alongside the Tune 520C USB-C and Junior 320BT in JBL's broader headphone range, within the Junior line built for younger users. As a wired model within JBL's Junior range, this represents the simpler, battery-free option compared with the wireless Junior 320BT nearby.

Key specs that matter

Rated response is 20 Hz to 20 kHz. Sensitivity is a deliberately low 78 dB per milliwatt into 34 ohms, a capped figure that limits maximum output for hearing safety purposes. Connector is 3.5mm. Weight is 116.8 g, a moderate figure appropriate for a child's head and comfort over extended wear.

Sound and use context

Expect a closed, over-ear character with deliberately capped volume typical of JBL's Junior range - parents specifically prioritising hearing protection should find the deliberately low sensitivity figure reassuring compared with a standard adult headphone, since this design mathematically limits how loud the headphone can play regardless of the connected source volume setting.

Pairing

The 34 ohm impedance and 78 dB sensitivity are easily driven by any phone or tablet, with the low sensitivity acting as a built-in safety ceiling on maximum volume.

Alternatives

The Junior 320BT sits alongside this model as the wireless version of the same Junior platform; the Tune 520C USB-C sits in JBL's broader range as an adult-oriented alternative without the volume-limiting safety features built into this Junior-branded model. Parents should also check JBL specific volume-limiting implementation details, since different manufacturers approach this safety feature differently, and confirming exactly how the limiting works gives the clearest picture of the protection actually offered. A properly fitted headband adjustment also improves both comfort and consistent seal for younger listeners. Overall this remains one of the more feature-complete options within JBL dedicated childrens headphone lineup. A snug, correctly sized headband cushion also improves comfort during longer listening sessions.