Manufacturer: Lenovo, Product Type: Wireless TWS Earbuds, Model: X9 Edition, Color: Thunder Grey, Drivers: 12.2mm Dynamic, Frequency Range: 20Hz–20KHz, Impedance: 16Ω, Microphone Sensitivity: -38±1dBV, Microphones: 3-MIC with SNR 64dB(A), Technologies: ANC, Transparency Mode, Noise Cancellation, Connectivity: Bluetooth 5.3, Wireless Range: up to 10m, Battery Life: up to 7h (ANC off), up to 36h with charging case, Battery Capacity: Earbuds 40mAh, Case 500mAh, Charging Time: about 1.5h, Control: Double/Triple Taps, Voice Activation, Weight: 47g, Included Accessories: Ear tips in three sizes (L, S, XS), User Manual, Warranty Poster.