Monster iClarityHD Bluetooth Wireless Speaker (Silver) (Discontinued by Manufacturer) Model No. Ai Cly Mbt 100 Compatible With iPad/iPod/iPhone & Macbook Ultra-Compact, High-Performance Bluetooth Speaker Delivers Best-In-Class Wireless Stereo Sound Built-In Microphone With Advanced Noise Cancellation Enables Clear Wireless Hands-Free Calling & Conferencing. Rechargeable Li-Ion Batteries Power Up To 5 Hours Of Play Time At Full Volume On A Single Charge Ultra-compact, high performance bluetooth speaker and speakerphone in the palm of your hand Two 35 mm full range drivers gives you music incredible fidelity in the mid and high frequencies Monster Passive Radiator Subwoofer for deep, clean and tight bass Bluetooth 2.0 audio and digital signal processing for superior sound quality in a compact design Up to 5 hour playtime with Lithium Ion rechargeable batteries