Teckology bluetooth wireless waterproof speaker Waterproof Wireless Bluetooth Speakers Suction Hands-free Mic for Apple iPhone Samsung other Android smartphone can answer/hung up hands-free call when phone is in bluetooth mode Good bass feeling Clean and transparent sound,Can switch songs and control volume,Built-in mic for you to answer phone call Built-in rechargeable battery,Transmitting Frequency: 2.4G Hz,Input: DC 5V 100~120mA,Battery: 3.7V 400mAh Lithium,Range: 10m Size: 75 x 75 x 55 mm/ 2.95 x 2.95 x 2.17in,Net Weight: 110 g/ 3.81 oz,1 x Bluetooth Speaker 1 USB cable blue/rosy/yellow/green