World's Smallest Bluetooth Speaker with good Battery Backup & Advanced audio performance with a compact design.

Its Coin sized Speaker! Enjoy an impressively full sound quality and robust bass realized through audio driver and passive subwoofer.

Long Playtime, Fast Recharge: Enjoy 2 to 3 hours of non-stop music!

Incredibly Compact: This ring box-sized Bluetooth speaker fits easily into your jacket pocket or the small side pocket of your backpack.

High Compatibility with: Pair smartphones, tablets, laptops and more via Bluetooth (up to 10 meters / 33 feet). Built-In Microphone for Hands-Free Speaker Phone Calling, Environmental Friendly Rechargeable Battery, Super Bass and surround Sound. Listen to music with volume adjustment, previous/next/pause functions.

• - Built-In Microphone for Hands-Free Speaker Phone Calling, Environmental Friendly Rechargeable Battery, Super Bass and surround Sound
• Multi Use: Can work as your camera shutter.
• - World's Smallest Bluetooth Speaker with good Battery Backup & Advanced audio performance with a compact design. Its Coin sized Speaker Full: Enjoy an impressively full sound quality and robust bass realized through audio driver and passive subwoofer
• - Easy to use, simply connect device via Bluetooth!