Features:

• Built-in Bluetooth Technology Version 4.1 Class II Wireless Audio Streaming
• Simply Touch to Pair with NFC Technology
• Convenient Hands-free Speakerphone Including Call answer-hangup Button
• Auxiliary Input for Additional Audio Sources
• Built-in Maximum Volume Indicator
• Battery Power Indicator
• Rechargeable with Built-in Lithium-ion Battery through Micro USB Charging Port or USB Power Adaptor
• Profile Support: A2DP, HFP, HSP
• Waterproof up to JIS7 Standard
• Water-resistant 3 Watts Speaker
• Folding Handle
• Aux-in Signal Cable and USB A to Micro B Cable Included

Specifications:

• Earphones Output Power: 1.5w
• Size ( mm / inch ): 57mm
• Impedance: 4 ohm
• Power: Micro USB DC-IN
• Mains Power Supply: Micro USB DC-IN 5V 1A
• Batteries (Main Power): 18650 Lithium-ion 3.7V / 2200mAh
• Others: Micro USB DC IN
• Others: Aux-in Signal Cable, Micro USB - USB DC Cable
• Width (mm/inch): 139 / 5.47
• Depth (mm/inch): 60.5 / 2.38
• Weight (g & lb. oz): 510 / 1lb. 2oz