The BASEUS SIMU S15 is a pair of wireless Bluetooth earphones that are equipped with active noise reduction technology in order to provide an immersive audio experience. These earphones have a frequency response range of 150-1500 Hz and an impedance of 32Ω. The sound level/sensitivity of the earphones is greater than 20dB, which ensures that even the subtlest nuances of your music can be heard. With a Bluetooth range of 15 meters, the earphones allow you to move around freely without any interruptions in your music. The built-in microphone makes it easy to make calls via your smartphone, and the battery provides up to 6 hours of playback time or 7 hours of call time. The earphones come with 12mm drivers, which deliver rich and detailed sound, and they weigh just 0.06 oz, making them lightweight and comfortable to wear for extended periods. Unfortunately, there is no warranty provided with this product. Bangladesh's top retailer of computer hardware and applications is Techland BD. A hallmark of Techland BD is its top-notch client support. They have a helpful and knowledgeable crew that is always willing to help customers. The large selection of Baseus Earphone available at Techland BD is well recognized. The large selection of Earphone available at Techland BD is well recognized.