EarAcoustic Audio STA-Pro Ultra IEM Wired HiFi in-Ear Earphones 10mm Graphene + 6mm Polymer Diaphragm High Quality 3.5mm Jack

Characteristic:

1.The STA series utilizes dual core dynamic coil acoustic architecture with double energy, Tesla level magnetic coil technology,
High frequency and extremely high frequency sound: 6mm micro coil, medium low frequency sound: 10mm large dynamic coil.

2.STA Pro Ultra adopts a 10MM nano ultra-thin graphene diaphragm and a 6MM polymer composite diaphragm. The elastic modulus of the ultra-thin graphite diaphragm is approximately 100GPa (ultra fast response to audio signals, smooth and balanced frequency response).

3. STA explores the tuning concepts of science and art:
(1) THD<0.5% - - Pure and natural tone
(2). Signal attenuation<0.5dB - transparent and delicate sound
(3). Transient response time<3 milliseconds - clear and concise
(4). Intermodulation distortion<0.05% - - pure tone quality, durable listening
(5). Sensitivity>113 dB/mW - easy to drive
(6). Low frequency rebound ≈ 50 milliseconds - strong and obvious sense of rhythm

Parameter specifications：

Unit: 10MM Ultra Clear Analysis Double Magnet Ink Diaphragm+6MM Titanium Plated Diaphragm Dynamic Coil Unit
Sensitivity: 113dB
Impedance: 18 ohms
Frequency response range: 10-30000Hz
Process Materials:ABS resin material electroplating chamber,Zinc alloy electroplated frame,Glossy resin finish.
Wire specification: 0.78MM dual pin oxygen free copper and silver plated wire mixed weave 1.20M

Product list:

1. [STA-Pro Ultra] In Ear Earphones * 1
2. Cable * 1
3. Earplugs * 6 (S, M, L)
4. Storage gift box * 1
5. Instruction manual * 1