Experience premium sound quality, with a wide sound field for expansive listening and soft memory foam earpads for complete comfort. And with the freedom of wireless listening, the Platinum Bluetooth Headphones let you enjoy powerful sound wherever you go. With up to 35 hours playback, Active Noise Cancellation (ANC) and Environmental Noise Cancellation (ENC), our Platinum Bluetooth Headphones let you easily filter out unwanted sound, with a noise-canceling depth of 30dB. Meanwhile, Transparency mode lets you stay aware without interfering with your audio experience. By allowing you to hear surrounding sounds, you can stay connected with the world while you listen. With the Platinum Bluetooth Headphones, you benefit from powerful sound without plastic impact. All our products are 200% plastic regenerative, 100% carbon neutral and use 100% sustainable packaging (FSC certified).       Product specifications: Driver size (mm): 40mm Driver Sensitivity: 100dB at 1KHz Driver Frequency response: 20Hz-20KHz Impedance (ohms): 32ohm Bluetooth Profiles: A2DP, AURCP, HFP, SPP, DID, HOGP,PXP, FMP, BAS Bluetooth Frequencies: 2.4GHz Bluetooth version: 5.2 Charging time (hours from empty): 3 Hours Music playtime with ANC off: 35 Hours Music playtime with ANC on: 30 Hours Standby time: 250 Hours Adaptive noise cancellation: Yes Ambient Aware: Yes Number of built in microphones: 5 mics Multipoint connection: Yes