VJ099 Bluetooth 5 Headphones.3 with Active Noise Cancellation (ANC): • ANC: Noise-sensing technology that detects ambient sound, allowing you to block out external sounds wherever you go, so all you hear is your music. •Enjoy high-quality, vivid sound thanks to the bass boost. •Lightweight and comfortable circumaural headphones with a padded headband and ear cups specially designed for long listening sessions. Foldable. •Bluetooth 5.3 latest generation, with improved range, greater stability and better energy management. With the possibility of cable connection via Jack 3.5mm. •Hands-free function, thanks to its microphones you will get clear and sharp calls, also compatible with noise cancellation mode. •Direct access to voice assistants such as Siri and OK Google (check availability on your smartphone / tablet, only via Bluetooth connection). On-screen battery level indicator for iOS. •Built-in music playback controls. Wireless version: 5.3 Supports configuration files: A2DP, AVCTP, AVDTP, AVRCP, HFP, SPP, SMP, ATT, GAP, GATT, RFCOMM, SDP, L2CAP Operating distance: 10 meters Frequency range: 2.402 to 2.480 GHz Speaker: 40 mm Impedance: 32 Ω Frequency response: 20 Hz - 20 kHz ANC amplitude: 25 +/- 3 decibels ANC frequency range: 20 - 1000 Hz Rechargeable lithium battery: 400 mAh Music playback time with ANC: up to 8 hours With ANC off: up to 15 hours Call time with ANC: 7 hours Call time without ANC: 14 hours Charging time: 2.5 hours (ABS, alloy) of metal.