... for choice 4) The speaker is designed for laptop/mp3/mp4/CD/phone We can logo your logo on the items ... ,Oil companies. Features: ·Portable mini speaker suitable for IPOD,MP3 ,MP4 player, PC & Mobile Phone,MD,CD,PDA,PSP and other ... ·SNR≥89db ·Battery capacity:300mAh ·Dimension:D(73MM)*H(35mm) Accessories: Power adapter, User manual, Audio cableWe can logo your logo ...