







YONGYUNG® YYZT-YJ-55 OPEN-EAR SPORTS WIRELESS EARBUDS
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
- Bluetrum AB5756C Chipset
- 6.5 Full Case Charges
- 12mm Driver
- 45mAh Earbud / 600mAh Case Battery
- 6 Hours Playback Time (70% Volume)
- Lightweight 6g Earbud Design
Color Options
DETAILED SPECIFICATIONS & TRUST BUILDING
Detailed Specifications Datasheet
| Product Name | YONGYUNG® YYZT-YJ-55 Open-Ear Sports Wireless Earbuds |
| Model Number | YYZT-YJ-55 |
| Bluetooth Version | 6.0 |
| Chipset | Bluetrum AB5756C |
| Driver Size | 12mm |
| Earbud Battery | 45mAh |
| Charging Case Battery | 600mAh |
| Playback Time | 6 Hours (70% Volume) |
| Charging Cycles | 6.5 Times |
| Earbud Weight | 6g |
| Color Options | Black / Beige / Purple |
| Waterproof Rating | None |
| Package Size | 113 x 84 x 35 mm |
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)