Wish You A Happy Shopping.We Provided Intimate ServiceSpecifications:Working Voltage: 3.3-4.2VConsumption Rate of: 0.6WCharge Voltage: 5V/500mANormal Charging Time: about 3 HoursBluetooth Standard:Bluetooth Version 3.0 +EDRFrequency Response: 20Hz-15KHzWireless Connected Distance: 10-15 metersHands-free Calls Time: about 8 HoursStandby Time: up to 50 hoursColor: BlackHost Device Dimension: approx. 117 x 45 x 15mmNet Weight: 109gPackage Includes:1 * Host Device (Speaker)1 * USB Cable1 * Car Charger1 * Clip1 * 450mAh 3.7V Battery loving life，loving shopping~ have a wonderful day~