1.Mobile Phone speaker 2.Compact design 3.High quality,clear bass resonance 4.cable,enabling great portablility 5.Vacuum Bas Mobile Phone speaker ... mini speaker suitable for IPOD,MP3 ,MP4 player, PC & MOBILE PHONE,MD,CD,PDA,PSP and other digital products with audio ... frequency output ·Lithium battery input:3.7V·Speakers:D36mm*1·Charge voltage: 4.2V·SNR>89db·Battery capacity:300mAh·Dimension ...