H668BT Audio series Bluetooth headphone

①ANC / ② 204g Lightweight&Foldable ③ Super long battery-life ④ Dual devices connection ⑤ Hi-Res Wireless Version:V 5.4 | Headphone Battery:500mAh | Play Time:80h(60%vol)/50h(60% vol with ANC ON) | Charging Time:1.5h | USB Port:Type-C | ANC depth:-25±5dB Headphone Dimension: 195*205*50mm | Headphone Net Weight: 204g Wireless Working Range:10m (without obstacles) Profiles Supported: a2dp 1.3.2\avctp 1.4\avdtp 1.3\ avrcp1.6.2\hfp 1.8 \spp 1.2\l2cap core 5.3 Audio code: AAC SBC | Speaker Size:φ40mm | Speaker Frequency: 20hz~20khz Sensitivity: 111±2dB 1kHz | Impedance: 32Ω | Input Voltage / Current: 5V/1A