Product Bluetooth Version: Bluetooth 4.2 Speaker Output Max Power: 5W*2 Frequency Response: 70Hz-20KHz Charging Input Criteria: 5V\/2A Battery Capacity: 4000mAh Working Time: 20Hrs USB Charging Mode: 5V\/2A Material: plastic Colors: White, Black Size: 165*96*80mm Package content: 1*mini card speaker wireless charging 1.Powerful Bluetooth Speaker with Stereo Surround Sound: listen and Feel the dynamic energy from dual 5W Middle and high-pitched speakers and a rear bass diaphragm. 2.Stereo surround sound design: high fidelity speakers output Listening to music, videos, movies and games. 3.Wireless Charging: simply operate and charge your phone by putting it on the speaker stand. Non Qi phone can be charged through rear USB ports. Qi Wireless enabled phone including: iPhone XS \/ iPhone XS MAX \/ iPhone XR \/ iPhone X \/ iPhone 8 \/ iPhone 8 Plus ; Samsung Galaxy S9 \/ S9+ \/ S8 \/ S8+ \/ S7 \/ S7 edge \/ S6 edge+ \/ Note 9 \/ Note 5, Samsung S6\/S6 edge; Google Nexus 6 \/ 5 \/ 4 ect. 4.High battery Capacity: 4000 mAh li-ion battery plays up to 10-12 hours on a full charge. Does not come with wall plug-in power adapter. 5.Innovative design: combine premium speaker system, Qi wireless charging and docking into one solid device for home and office.