GRIFEMA GH1001 Bluetooth Headphones Over Ear, Wireless Earbuds 5.3, 12-14H Playtime, Hi-Res Audio, Deep Bass, Memory Foam Ear Cups, for Outdoor Travel, Home Office,Black

【Bluetooth 5.3】Adopts advanced Jereh Bluetooth 5.3 technology to provide efficient and stable data transmission and pairing, and the signal reception range can reach 10 to 15 meters (Support HFP/A2DP/AVRCP) 【Multi-function button】 The earpiece is equipped with a multi-function button, which is convenient for answering/hanging up calls, rejecting/hanging up, playing/pausing music, adjusting the volume and controlling the previous/next song. 【Noise reduction function】 move the noise reduction switch to activate the back-feed noise reduction mode (single feed), the noise reduction depth is 20dB±2 and the effective noise reduction bandwidth is 50-800Hz. 【2 modes】The wireless headphones can be connected to the mobile phone via Bluetooth, or can be connected to the Line_in line to automatically turn off Bluetooth, and can be used as wired headphones. 【Extended work】 The wireless headset only takes 1.5 hours to charge, can be used for 12-14 hours and the noise reduction mode can be used for 7-8 hours.