This device employs a high quality Japanese FOSTER speaker.  It provides superior performance and excellent volume in both indoor and outdoor environments.
The aluminum casing provides excellent resonance for the speaker as well as impact protection.
An elegant appearance with multifunctional input for data transmission, earphone, and charging.
Speaker output quality will not decay during the life of battery.
Charging time through USB cable: Approximately 6 hours
Charging time through USB 5V/1AAC commercial adaptor: Approximately 3 hours (The USB AC adapter is not included)
Built-in rechargeable Li-ion battery
Player battery work time
Speaker out up to 9 hours
Headphone out up to 60 hours
Support MP3/WMA format files
Operation temperature: -10 degrees c to 50 degrees c
Dimensions: 88 x 35 x 35 mm
Weight: 139g( 5 oz)

Speaker Output: THD+N=0.15% @ 1.5W , SNR=94db @ 1.5W  
Hearphone output:THD+N=0.6% @ 32Ω , SNR = 92 db @ 32Ω  
Charging time through USB cable: Approximately 6 hours  
Including: Speaker, Handlebar Mount and USB cable