👍👍👍👍 Product description: ❣️Speaker unit: 40MM diameter ❣️Impedance: 32Ω±15% ❣️Sensitivity: 98dB±3dB ❣️Frequency response: 20HZ~20000Hz ❣️Bluetooth specifications: Bluetooth V5.4 Jieli JL7006F8 ❣️Support protocols: A2DP, AVRCP, HSP, HFP ❣️Transmission range: 10 meters Transmission frequency: 2402-2480MHZ ❣️Maximum RF output power (EDR): 4dBm ❣️Modulation type (EDR): GFSK, π/4-DQPSK ❣️Charging interface: USB-C ❣️Charging voltage: DC 5V ❣️Charging time: about 1.5 hours ❣️Call time: about 55 hours (38 hours on ANC) ❣️Music time: 55 hours (38 hours on ANC) (80% volume) ❣️Standby time: more than 200 hours ❣️Product material: ABS+PU leather+cloth net ❣️ Charging indicator light: The orange light is always on when charging, and the full turn white light is always on. ❣️500mAH, Class A, Polymer Battery ❣️Net weight of product: 207g ❣️Product size: 199*186*77mm