POWERFUL Team Planet 10 Watt Portable Bluetooth Speaker Microphone - Solar Compatible IC Protective Chip to handle amp fluctuations from solar charger SUPERIOR QUALITY - Shootout Pro has the very latest in technology, circuitry, battery cell power and efficiency, and design. We engineer this speaker to have only the best components. POWERFUL - speaker that produces a big, warm, crisp sound with clear highs. 10W output is the highest available in this price range. QUICK AND EASY pairing to any smart phone or tablet over a 30-foot distance. It remembers the last eight devices used, so reconnecting is automatic. BUILT-IN Li-Ion Rechargeable battery lasts 4-6 hours depending on loudness. AFRICA IMPACT: When you buy our products you are helping us to bring electricity to people in Africa.