Lenovo HT06 TWS Earphone Wireless Bluetooth with CVC Dual MIC Noise Reduction technology, effectively reduce the environmental noises and enhance your voice. The sealed in-ear ergonomic design brings noise isolation effect for clearer sound, ensuring high-quality music and crystal-clear phone calls even in a noisy background. All day. every day: Boasting a total 24 hours of battery life, with a portable charging case.