Remax RB-T20 Ultra Thin Bluetooth Headset This ultra thin bluetooth earpiece from Remax is the perfect accessory for phone calls on the go.The ergonomic design allows this to sit on your ear without causing discomfort, HD noise cancellation ensures your phone calls are always crystal clear.Bluetooth 4.1 technology guarantees a stable connection and also allows for multiple connections at the same time. Features - Special ultra-thin earphone design, earhook wearing, fits for both right and left ear. High fidelity sound quality, it has been tested for many times, provide you clear sound. - Adopted Bluetooth V4.1 chip, guarantees stable connection and support simultaneous connection. Optimized circuit design, low power consumption, prolong the standby time and talking time. - Simple operation, one button to control the power on/off, answer or hang up call, etc.