Yoyo Wireless Finger Speaker in Metallic Version.  Wireless Connection: Bluetooth / Transmission Distance: 10m / Battery Type:  Li-Polymer / Capacity: 180 mAh / Playtime: yo to 2 hours / Recharging Time: approx 1 hour  / Battery Weight: 4.6g / Outpot Power: 3W / Audio: Mono with 2 pair of speakers and selfie remote. / Accesories: USB To micro USB charging cable. Product Size:34.4×34.4×31(mm) Packaging: Black Paper Box