The JBL Junior 470NC uses an over-ear fit and is specifically designed for kids, weighing a modest 196 g. It features a foldable build for easy storage and transport, though no travel bag is included. The headphone comes with a detachable, tangle-free cable, making it practical for daily use, and houses stereo speakers in a closed-back configuration. Water resistance is not provided, so the headphones are not suited for wet conditions.
The JBL Junior 470NC includes active noise cancellation (ANC) alongside passive noise reduction, addressing ambient sound on two levels. Its 32 mm driver covers a frequency range of 20 Hz to 20,000 Hz, with an impedance of 35 Ohms and a sound pressure level of 83 dB/mW. The drivers do not use a neodymium magnet, and spatial audio is not supported.
The JBL Junior 470NC is powered by a built-in 500 mAh rechargeable battery that is not removable. It delivers up to 50 hours of playback in standard wireless mode, which drops to 28 hours when ANC is active. Charging is handled via USB Type-C and takes approximately 2 hours to complete; wireless charging and solar charging are not available. A battery level indicator is on board to help keep track of remaining charge.
The JBL Junior 470NC connects wirelessly via Bluetooth 5.3, with a maximum range of 10 m. Advanced audio codecs — including aptX, aptX Adaptive, aptX HD, aptX Low Latency, aptX Lossless, AAC, LDAC, and LDHC — are not supported, and neither is Bluetooth LE Audio or Auracast. Fast pairing and NFC pairing are also absent, so the headphone relies on standard Bluetooth pairing only.
The JBL Junior 470NC can function as a headset, equipped with a single noise-canceling microphone for calls and voice use. Controls are handled through an on-device control panel, while an in-line control panel is not included. The headphone does not offer a mute function or in/on-ear detection, so music playback does not pause automatically when the headphones are removed.