Description: Small and portable， plug and play Mini sized speaker with good loudness and tone Compatible with iPhone 3G， iPod nano 4G， iPod touch 2G， iPod classic 120GB 3.5mm Jack designed for all audio devices such as iPod， iPhone， MP3 and MP4 etc. Specifications: Item: Mini Microphone for iPhone 3G\/iPod Nano 4G\/iPod Touch 2G\/iPod Classic 120 (3.5mm Jack) Dimensions: 1.38 in x 0.47 in x 0.47 in Weight:14g Package included: 1XMini Microphone for iPhone 3G\/iPod Nano 4G\/iPod Touch 2G\/iPod Classic 120 (3.5mm Jack)