RADIUS / HP-NEF21K

These in-ear earphones are part of the Pure Standard series. They feature a ringless diaphragm-bonded driver. The driver unit employs a structure that reduces diaphragm vibration suppression, enabling more precise sound quality adjustment. Deep-mount earpieces ensure a stable fit and rich bass reproduction. Available in black.

Specifications:
■Type: In-ear earphones
■Format: Dynamic
■Driver: φ10.4mm
■Frequency Range: 7-24,000Hz
■Impedance: 18Ω
■SPL: 98dB/mW
■Maximum Input: 150mW
■Plug: φ3.5mm stereo mini plug (gold-plated)
■Cable Length: Approx. 120cm (Y-type)
■Color: Black
■Weight: Approx. 14g (including cable)
■Accessories:
- Eartips (XS, S, M) x 1 set each
- Instruction manual/warranty card