Condition: Brand New More than 1 available Colour: black and gold Connectivity technology: Bluetooth and USB Material: Aluminium Alloy Weight: 365g(12.87oz) Output Power: 6W(Speaker Output) Charging Voltage: DC 5V 1A Charging Time: 2 hours Sing Time: Up to 4-10 hours Products Size: 9.45*2.95*2.36in Speaker Frequency: 100Hz-10KHz Transmission Distance: 10m(32.8ft) Maximum sound pressure level: >115db 1KHz THD<1% Reverb Mode: Echo sound reverberation Very easy to use. A great gift for family, friends, kids