RB-S3 Detachable Sport Clip-on Bluetooth Headset The RB-S3 Detachable Sport Clip-on Bluetooth Headset from Remax provides studio high quality sound. In addition to the convenience of use, the RB-S3 conversational form is a dedicated wireless headset for listening to music. The sound emanating from the S3 is quite warm and detailed. Product Specifications: Bluetooth Version: V4.1 Brand: REMAX Color: White, Black Material: Metal Operating Range: 10m Interface: 3.5mm Audio Application: Computer, Mobile Phone, Sport, Tablet PC Standby Time: About 300 Hours Battery Type: Built-in Rechargeable Battery Support: Headphone/ Speaker/ Car audio Net Weight: 13 g / 0.46 oz Size: 34 x 34 x 13 mm / 1.34 x 1.34 x 0.51 inch Package Contents: 1 x Remax Clip-On Bluetooth Audio Adapter 1 x Wired Earphone