







YONGYUNG® YYZT-S2 TRUE WIRELESS SEMI-IN-EAR EARBUDS (OEM/ODM)
Technical ID: 276367308855 | Version HISO: 01-01
| Quantity Range | MOQ | Est. Lead Time |
|---|---|---|
| 100-499 Units | 100 Units | 7-15 Days |
| 500-999 Units | REQUEST QUOTE | 7-15 Days |
| 1000-1999 Units | REQUEST QUOTE | 7-15 Days |
| 2000+ Units | NEGOTIABLE | Discussed |
Key Specs Quick-Check
- Comfortable Semi-In-Ear Wear
- Bluetooth V5.3 Experience
- 13mm Large Dynamic Driver & HIFI Sound
- 48-Hour Long Endurance
- Dual Mic ENC Noise Reduction
- IPX5 Water Resistant
Color Options
DETAILED SPECIFICATIONS & TRUST BUILDING
Detailed Specifications Datasheet
| Product Name | YONGYUNG® YYZT-S2 TRUE WIRELESS SEMI-IN-EAR EARBUDS |
| Model Number | YYZT-S2 (Ref: D28) |
| Product Category | Sports Earphones / True Wireless |
| Wearing Style | Semi-In-Ear |
| Material | ABS |
| Bluetooth Version | V5.3 |
| Chipset | Jieli |
| Speaker Specifications | 13mm Large Dynamic Driver |
| Audio Features | HIFI Tone Quality / Dual Mic ENC Noise Reduction / Bilateral Stereo |
| Waterproof Rating | IPX5 (Daily Waterproof) |
| Transmission Range | 10 Meters |
| Earbud Battery Capacity | 30mAh |
| Single Playback Time | Approx. 5 Hours |
| Total Endurance Time | Up to 48 Hours |
| Total Net Weight | 65g |
| Color Options | Black / White / Red |
| OEM Customization | Supported (Public Mold) |
Quality Control (QC) Process Display

SALT SPRAY TEST

HIGH-LOW-TEMP

IPX8 Deep Water

EARHOOK FATIGUE TEST
OEM/ODM CUSTOMIZATION SERVICES
• Custom Logo placement
(e.g. silkscreen outside the earhook)
• Custom Colorway
(MOQ: 100 units per color)
• Custom Packaging Design
(Bespoke retail packaging, templates provided)
• Software Integration
(Custom boot prompts & App UI localization)