Want to buy 8 mm to 10 mm speakers for headphones

We are looking for custom miniature drivers/speakers for in-ear headphones. Our requirements are * Frequency response 5 Hz - 24,000 Hz (20 Hz - 16,000 Hz +/-3 dB) * Impedance 120 Ohm * THD 0.1% * SPL 125 dB (1KHz, 4 Vrms) * Frame material aluminum or copper * Magnet alnico or neodymium * Diaphragm thickness 4 µ - 6 µ * Diaphragm diameter 8 mm - 10 mm * Maximum power 20 mW - 50 mW * No cover in front of the diaphragm * Holes/vents behind the diaphragm must be expanded * No damping material behind the diaphragm * Dynamic drivers/speakers only Only manufacturers shall reply to this buying lead

• Target Unit Price:
• USD neg.
• Target Quantity:
• 800k
• Remarks:
• Please read the requirements before you reply, we are looking for custom speakers, not counterfeits nor off the shelf stuff