👍👍👍Product Description: ✨Speaker unit: 40MM diameter, impedance: 32Ω±15%, sensitivity: 98dB±3dB ✨Frequency response: 20HZ~20000Hz ✨Bluetooth specifications: Bluetooth V5.4 Jerry JL7006F8 ✨Supported protocols: A2DP, AVRCP, HSP, HFP ✨Transmission range: 10 meters ✨Transmission frequency: 2402-2480MHZ ✨Maximum RF output power (EDR): 7DB ✨Modulation type (EDR): GFSK, π/4-DQPSK ✨Charging voltage: DC 5V Charging time: about 2 hours ✨Talk time: about 90 hours (65 hours with ANC on), music time: 90 hours (65 hours with ANC on) (80% volume) ✨Standby time: more than 200 hours, 800mAH Class A, polymer battery ✨Product net weight: 198g ✨Product size: 195*185*84mm