Specification: Color: Black Battery capacity: 3500mAh Charging mode: wire charging (micro connector) Charging time: 120 minutes Charging state: the charging box is marked with 3 blue lights flashing in turn, blue 3 lights are on when on Maximum number of charges for headset: 2 times Earphone filling time: 120 minutes Earphone charging state: the charging box is marked with 3 blue lights flashing in turn, blue 3 lights are on when on Product size: 113.6 * 64 * 26mm/4.57*2.52*1.02in Applicable model: for Plantronics Voyager 5200 5210 headset Packages: 1 x Headphone Charging Box(Headphone NOT Included) 1 x USB Charging Cable Note: 1. Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. 2. Due to manual measurement, the product has some size tolerance. 1. The charger case for Plantronics Voyager 5200,5210, headset freely and up to 14 hours of talk time. Please Note that the headset is Not included 2. It allows you to charge for Voyager 5200 5210 with any micro USB charging cable. 3.Recharge the headset inside the case with USB charge cable or work as a portable power 4.LED indicators show the battery status of both the headset and the case at a glance. 5. Portable and easy to store,the sleek design can be easily put into your pocket