Product chip: true three-dimensional chip Working time: 3-4 hours Standby time of charging compartment: 30 days+ Headphone battery capacity: pure cobalt 35 mAh Charging compartment battery capacity: pure cobalt 400 mA (with IC protection board) Packing size: 10.3*7.2*4.4cm Packaging standard: earphone *2 + charging compartment + USB charging cable + manual + packaging box Features: water drop shape, 360-degree rotation opening, touch SIRI, Type-C charging port, multi-color macaron; automatic headset pairing when the headset is out of the warehouse, automatic shutdown and automatic charging when entering the warehouse; pure cobalt battery with protection board, real copper Ring bass, high-definition binaural talk.