Anisell TT-BH02 Wireless Rechargeable Over-the-head Bluetooth Headset Handsfree Headphone with Microphone, Multipoint Support Bluetooth v2.1,CRS Blue Core 6, Frequency:2.4GHz-2.4835GHz; Connect two devices simulatanenously, easy to switch each other,but only talk on either device Talking time: up to 13 hours; Standby time: up to 220 hours. Blocks 4 Times external noise, Noise canceling, crystal clear sound Over-the-head bluetooth headset is lightweight and very comfortable for wearing,and it easily pairs with your phone 1 year warranty;Transmission distance: Up to 10M Package Content: 1 x Bluetooth Headset, 1 x USB Charger