This earphone housing is manufactured by CNC auto lathe and turning-milling composite integrated precision machining. Multiple material options including aluminum alloy, stainless steel and brass are available. Custom service based on drawings or samples is supported. The product features smooth curved surface with high dimensional accuracy. Various surface treatments such as anodizing, sandblasting and wire drawing are available. Widely applied for TWS Bluetooth earphones, over-ear headphones and other acoustic devices.

1. Turning & Milling Composite Process: One-time clamping to finish curved surface, inner hole, thread and contour processing, reducing re-clamping error. Dimensional tolerance up to ±0.005mm.
2. Multiple Material Options: Aluminum alloy, stainless steel, brass to meet different requirements on structural strength, weight and acoustic performance.
3. Rich Surface Finishes: Black anodizing, color anodizing, sandblasting, wire drawing, polishing. Smooth hand feel, wear resistance and anti-corrosion.
4. Complex Curved Machining: Capable of processing special streamline curved housings to meet ergonomic design of earphones.
5. Low-volume prototyping & mass production available. Customization with drawings, fast sample delivery.

• Product Name: Metal Earphone Housing, CNC Turning Milling Parts
• Model: CRAI0229
• Machining Process: CNC Auto Lathe, CNC Turning-Milling Composite
• Optional Materials: Aluminum Alloy, Stainless Steel, Brass
• Dimensional Tolerance: ±0.005 ~ ±0.02mm (per drawing requirement)
• Surface Treatment: Anodizing, Sandblasting, Wire Drawing, Polishing, etc.
• Application: TWS Bluetooth earphones, over-ear headphone housings, precision metal parts for audio equipment

TWS wireless Bluetooth earphone housing, over-ear headphone structural shell, precision metal accessories for acoustic equipment, special-shaped metal housings for consumer electronics.