... 3*7.3cm 12. Use: Portable Audio Player, Mobile Phone, Computer 13. Colour: White, Yellow, Orange, Pink, Blue, Green or other colorsProduct ... Applicable to many digital audio player like MP3, MP4, Laptop, PC, MD, Mobile phone, etc.7. Using the world's advanced technology ... different from traditional speaker. it can also charge for your cell phone any time, make you life more convenient.Pictures:About Us ...