The LENYES LH26 ANC has the following features: wireless version: V5.4; wireless frequency: 2402-2480MHZ; charging interface type: TYPE-C; battery specifications: 400MAH; frequency response range: 20Hz~20KHz; noise reduction depth: 26dB±3dB; and 31 hours of music playback time. ANC playback time: 17 hours ● Talk time: 30 hours Standby duration: 60 hours ● Charging duration: approximately 2 hours ● Range of wireless connection: 15–18 meters ● Impedance: 32Ω+15%