Type: Wireless Headset Model Number: K920 Style: In-Ear Communication: Wireless Connectors: USB Function: Bluetooth, Microphone, Noise Cancelling Bluetooth Version: V4.1+EDR Chip: ISSC-2008 Operating Range: 10m Battery Capacity: 55mAh Talk Time: 6 Hours Charging Time: 1 Hours Music Time: 6 Hours Frequency: 2.402GHz-2.480GHz Enjoy Music, Volume Control, Switch Song Answer, End and Reject the Call; Last Number Redial Multipoint, Connect Two Mobile Phones at the same time Brand No Brand SKU 100366391_NP-1020638627 connector_1 USB Bluetooth Yes Headphone Features Built in Microphone,Noise Cancellation Wearing type In-Ear wireless_connectivity Bluetooth