Description: Compatible with: Samsung HTC smart phones Color: Black， Red Power output: 4W Impedance: 4 ohm Size: Approximately 50 x 52mm Petite in size but massive in sound. 3.5mm plug compatible with all types of player equipment. LED power indicator for power on and charging Full charging takes a minimum of 3 hours， depending on the output power of the USB port used. For best results， leave on charge overnight. Compact size， easy to carry. Package Including: 2 x Mini Speaker 1 x USB double pull charging cable 1 x Manual