Round Fusion ,Dynamic Design 
small and simple and elegant witless no hassle 
•Version v5.0
•Transmission range 10M
•Working time 4 hours 
•Music play time 4Hours 
•standby time 36 hours 
•charging time 1.5 hours
•sweat proof 
•pure bass and sound performance 
• Universal control for IOS and ANDROID 
• music and call control / Mic