Pool Party Proof ,With a rating of IPX7 and a cover of durable fabric, the Rockbox Bold is sand, dirt and pool party proof. Don’t worry about getting it dirty, you can easily rinse your Bold under the tap. , ,Turn It Up ,Wirelessly link two Rockbox Bold S speakers and maximize the sound. , ,Call Me Maybe ,Built-in microphone and speakerphone function , ,Hook Me Up ,Embellished with a strong, rubber label, hang it wherever you want. , ,Deep Bass ,Passive bass woofers for impressive beats , , ,1.5h