Waterproof speaker New Product 2014  High Quality New Mini Speaker Portable Mini Waterproof Bluetooth Speaker,Bluetooth Speaker Waterproof 

new product 2014  High quality Waterproof Bluetooth Speaker

Bluetooth version: V3.0
Frequency: 2.402-2.480GHz
Output power: 3W
Microphone sensitivity:-32db
Receiver sensitivity: higher than 82dBm
Receiving distance: 10-15 meters
Data transmission: more than 3.0 Mbps / sec.
UART data transfer rate: 115200bps
Bluetooth Antenna: Built-in Bluetooth antenna
Charging voltage: 3.7V-4.2V DC
Operating voltage: 4.8V-5.5V DC
Duration: 5 to 8 hours (depending on the volume too different at different times)
Charging time: 2-3 hours
Audio Input: None
External card: No
Tuner: No