1.plastic and protable mahjong design , 2.mini speaker.loundy and clear 3.can recharge 4.original factory sell

 •PACKING:color box +bubble bag

 •QTY 100PCS/CTN

 •Size of Ctn.  41.5*29*34CM

 •N.W/G.W.  7/8KG

 •Input:5.0V

 •Output:2w

 •Built-in rechargeable Li-ion battery

 •applicable to mp3,mp4,mobile phones, computer and other extenal source.       

Features	shell
	USB Interface	Hi-Speed USB 2.0
	Memory Card slot	None
Technical Specifications	Read Speed	1200KB/S
	Audio File Format	MP3
	Bit Rate	2400Bps
	Sample Rate	20-20KHz
	Battery life	4-5 hours
	SNR in case of speaker	>85dB
Physical Characteristics	Battery Type	3.7V 800MAH
	Storage Temp	-10~50
	Ambient Temp	-10~50
	Operation Relative Humidity	20%~90%(40)
	Storage Relative Humidity	20%~90%(40)
	Unit Dimensions(L×W×H)
	Unit Weight

mini digital speaker with Mahjong shape and colorful backlight