A perfect gift for tech enthusiasts who appreciate the inner workings of electronics. The clear outer case allows a user to see the speaker's circuitry inside the case while listening to their favorite tunes. The other side has a light panel with multiple fun light pattern sequence options. Specifications: Charging Voltage of Speaker: 5V/1A Maximum Audio Power: 5W Response Frequency: 70Hz-18KHz Wireless Distance: 10M Battery Capacity: 500 mAh (3.7V)