Looking for premium quality projector keychains with customization capabilities.  
Key requirements:  
- Must support rechargeable or replaceable batteries (disposable batteries not acceptable)  
- Capability to insert custom printed slides/layouts for personalized content projection  
- Brand name/logo integration via printing or engraving on the housing  
- Interested in viewing high-end design options  

Please provide detailed specifications, product catalogs, and competitive pricing.  
Prefer suppliers capable of meeting these technical requirements with quality assurance.