Main Features:  -Bluetooth 5.0, about 10 meters transmission distanc.  -Built-in 1200mAh high-capacity battery, battery life as long as 3.5 hours.  -Four playing mode meet your differnt need.  -HIFI quality sound,original sound distortion rate less than 0.5%.  -Beautiful design, mini portable.    Specification:  Color: White/Blue/Pink;  Voltage: DC 5V;  Power: 3W x 2;  Bluetooth: 5.0;  Bluetooth Distance: ≥10m;  Speaker: 45 Round Horn x 2, 4Ω 3W;  Charging Time: 2-3h;  Working Time: 10h;  Distortion: ≤0.5%;  Battery Information Battery Type: Li-ion battery;  Battery Capacity: 1200mAh;  Dimension:  Product Weight: 0.51kg;  Product Size: 28.20 x 6.200 x 5.20cm;    Package Contents:  1 x Speaker;  1 x USB Cable;  1 x Manual