Pengtour Custom EVA Headphone Cases — OEM Factory for TWS, Over-Ear & Audio Storage
Every earphone arrives exactly as it left your factory. Pengtour engineers custom EVA cases with CNC die-cut interiors matched to your product dimensions — charging case, ear tip organizer, cable slot, documentation pocket. Shell tested to MIL-STD-810G. Zipper options to IP67.
100 pcs MOQ
MIL-STD-810G Tested
TWS / IEM / Over-Ear
Min. Order Qty100 pcs MOQ✓No tooling fee
13+Years Team Experience
10M+Products Delivered
70+Fabric Color Options
50+Countries Served
Why EVA Outperforms Hard Plastic for Custom Headphone & Earphone Cases
Protection
Neoprene Pouch
Plastic Clamshell
Pengtour EVA Case
Device fit precision
✕Generic padding
⚠Rigid but not device-specific
✓CNC die-cut ±0.3mm to your device
Shock absorption
⚠Minimal
✕Hard shell transfers impact
✓EVA absorbs and distributes impact
TWS charging case slot
✕None
⚠Generic cavity
✓Zero-clearance microfiber-lined slot
Brand surface area
⚠Small patch
⚠Sticker only
✓Deboss/emboss full shell surface
Weight vs. protection
⚠Light but poor protection
✕Heavy
✓50–70% lighter than ABS equivalent
Pengtour Audio Storage Solutions — One Factory, Every Audio Form Factor
TWS Earphone Case
Zero-clearance charging case bay with microfiber-lined slot. Ear tip organizer tray (S/M/L sets). Cable coil slot. Documentation card sleeve. Optional: USB cable port through side wall.
Protection Challenge: TWS charging cases suffer surface scratches from repeated insertion and removal into generic cases. Loose earbuds rattle inside oversized cavities, stressing the hinge mechanism and scuffing the glossy finish.
Pengtour Engineering: Zero-clearance microfiber-lined charging case slot eliminates friction wear. Precision die-cut ear tip organizer tray holds S/M/L sets individually — no loose items, no rattle.
Headband channel engineering (straight or curved arc, per actual fold radius). Earcup isolation: 20mm EVA pad per cup. Internal pocket: cable + 3.5mm adapter. Carrying handle or shoulder strap attachment.
Protection Challenge: Over-ear headphones face two failure modes in shipping: stacking pressure permanently bends the headband arc, and prolonged compression degrades ear cushion memory foam — reducing noise isolation and comfort that customers immediately notice on unboxing.
Pengtour Engineering: Headband channel engineered to exact fold radius (straight or curved arc per model). 20mm EVA isolation pad per earcup prevents cushion compression. Internal cable + adapter pocket keeps accessories separated from headphone surfaces.
Compatible Products
Sony WH-1000XM5 / Bose QC45 / custom over-ear
IEM / Monitor Case
Custom-cast silicone or die-cut EVA ear shell tray. MMCX / 2-pin cable coil slot. Tool pouch insert for ear tip tools. Brushed aluminum nameplate option.
Protection Challenge: Metal-shell IEMs stored together risk metal-on-metal contact scratches between earpieces. Detachable MMCX and 2-pin cables tangle and pull on connector pins during removal, causing intermittent audio failure.
Pengtour Engineering: Custom-cast silicone or die-cut EVA ear shell tray with individual earpiece slots. Dedicated MMCX / 2-pin cable coil slot with ≥ 25mm bend radius prevents connector stress. Optional brushed aluminum nameplate for premium retail presentation.
Compatible Products
Custom IEM / CIEM / studio monitor earphones
Full Audio Kit Case
Multi-tier EVA interior: headphone bay (top tier) + DAC/AMP bay with cable management (bottom tier). Divider system: fixed or configurable. Retail display window on lid optional.
Protection Challenge: Multi-SKU audio kits — headphone, DAC/AMP unit, cables, adapters — have mismatched weights and surface hardness. Hard DAC/AMP corners abrade adjacent headphone ear cushions, and cable connectors scratch DAC input ports during transport.
Pengtour Engineering: Multi-tier EVA interior: dedicated headphone bay (top tier) fully isolated from DAC/AMP bay with cable management (bottom tier). Fixed or configurable divider system prevents tier-to-tier contact. Optional retail display window on lid for shelf presentation.
Compatible Products
Headphone + DAC/AMP + cable multi-SKU kit
Need a Different Camera Case Structure?
Share your camera model, lens configuration, accessories and estimated quantity. We will review the complete setup and recommend a practical direction for the shell, interior layout and sample development.
Four Dimensions of Customization — Custom Logo EVA Headphone Case, Your Way
Material & Exterior
EVA hardness 35–65 Shore C; finish: matte/gloss/fabric-wrap; color: custom Pantone; handle: rubber grip / metal bale / strap loop
Interior Layout
CNC die-cut per CAD; foam density 45–80 kg/m³; microfiber lining; elastic loops; zipper pocket; earphone-specific: headband channel, charging case slot, ear tip tray
Full custom mold (new EVA shell shape + new interior): 1,500
Mold fee 100% refundable against first bulk order ≥ 2,000 pcs
Pengtour Headphone Case Quality Control — Five In-House Gates, Third-Party Testing on Request
Gate
What We Check
Standard / Equipment
IQC
EVA hardness & density; zipper pull-force; hardware tensile
Shore C durometer; pull gauge; density tester
IPQC
Wall thickness; cavity accuracy ±0.3mm; zipper seal; hinge alignment
Digital caliper; CMM gauge; water probe
FQC
Device fit check; headband channel clearance ≥ 2mm; zipper 50-cycle; logo alignment; cosmetic
AQL 2.5 per ISO 2859-1:1999 (iso.org/standard/1141.html)
Performance
1.5m drop 6-face (MIL-STD-810G Method 516.6); IP67 splash (IEC 60529); TWS charging case slot insertion 500-cycle; headband 50 kg top-load
Drop tester; IPX chamber; torque meter
OQC
Cosmetic; label completeness; carton compression per ISTA 1A (ista.org)
Visual jig; carton tester
Headphone Category-Specific QC
Test Item
Method
Pass Criterion
TWS charging case anti-scratch
500 insertion/removal cycles with actual charging case
No visible scratch on microfiber lining; charging case lid opens/closes freely
Headband channel shape retention
50 kg vertical load applied to top panel for 24 hrs
Channel width deviation <= 1mm from nominal
Earcup pad isolation
Lateral compression 5 kg per earcup
No contact between earcup surfaces; padding intact
Zipper corrosion (optional)
48 hr salt spray per ASTM B117-19 (store.astm.org/b0117-19.html)
No visible tarnish on zipper coil or pull
Frequently Asked Questions — Custom EVA Headphone & Earphone Cases
Common questions about ordering, pricing, production, and shipping
The minimum order quantity for custom EVA headphone cases is 100 pcs per design.
Yes. Provide the charging case dimensions (L×W×H) and lid opening angle — we engineer a zero-clearance slot. Compatibility confirmed before mass production with a physical fit check.
Sample production: 7 days. Sample cost: RMB 500–1,200 (approx. USD 70–165), fully refunded on first bulk order.
Yes. For professional and studio monitor cases we offer a replaceable foam tile system — the customer reorders foam inserts without needing a full case replacement.
REACH/RoHS material compliance is standard. IP67 waterproof rating (IEC 60529) testing is available via SGS or Intertek. CE marking documentation support available for EU market products.
