Sennhesier SP20 ML Speakerphone Sennheiser SP 20 ML is a premium portable speakerphone designed for mobile business professionals for both personal & small group conferences on PC/softphone & mobile phone or tablet. Built-in cable system connects directly to PC & mobile phone or tablet. Sennheiser HD sound quality & voice clarity provide better interaction. Lightweight streamlined styling & superb finish give a high-quality appearance. Features include dual talk function echo canceling music setting & protective carrying pouch..