Features: - Elegant, portable, high-performance Bluetooth speaker with powerful dual 10W drivers and passive radiators - Express the true power and life of your music with the Eclipse Wireless Speaker. - A total 20W of vibrant, thrilling, energetic sound with heavy bass Specifications: - Technology: BT 4.2, A2DP, AVRCP, HSP, HFP - Audio Output Power: 2 x 10W - Signal-to-Noise Ratio: ?86dB - Power Input: DC 5V - Charging Time: 4 hours - Play Time: 12+ hours (at 50% volume) 7. Battery Type: Li-ion (4000mAh) - Operating Range: Up to 10m / 33ft What's in the box 1 x Aukey Eclipse Bluetooth Speaker