AGPTEK Wireless Bluetooth Headset with Mic Single Ear Trucker Headset Headphone Binaural Headset [Rechargable] for Smartphones Bluetooth Devices Standby time: up to 220 hours; Music time: up to 5 hours; Talking time: up to 13 hours; Blocks 4 Times external noise, crystal clear sound, good for work and kids' study Multipoint support: 2 Connection Simultaneously, Balanced and light weight; Bluetooth V4.1,CSR Binaural headset allow you to listen to music; Touch-button call answer /end, redial, volume control and voice dialing. What is included: 1x Bluetooth Headset; 1 x USB Cable(AC adapter is not included); 1x User Manual