CSHEN In-Ear Headphones Wireless Earbud

Description In-Ear Headphones bring you satisfactory call quality and music enjoyment. It works perfectly with most devices. It's comfortable to wear, and the lightweight charging case makes it easy to carry around. Specifications Name: In-Ear Headphones BT protocol: A2DP/HFP/HSP/AVRCP/SPP Impedance: 16? Speaker sensitivity: 116±3dB Frequency: 2.402GHz-2.480GHz Transmission: Class 2 Horn: 13mm Transmission distance: ?10m Battery Headphone: (37mAh) battery compartment (380mAh) Weight of a single earphone: 4g Charging compartment weight: 42g Playing time: 4 hours (70% volume) Talk time: 3 hours (70% volume) Charging time: earphone ? 80 minutes, charging compartment 1 hour Charging voltage: 5V 1A Features: 1. ANC noise reduction 2. Open the cover to start 3. Charging compartment breathing light 4.IPX4 waterproof 5. key reset 6.Touch 7.TYPE C charging port Packing list 1 pair x In-Ear Headphones 1 x Charging compartment 1 x Type-C charging cable 2 x Spare earplugs (L and S) 1 x Instruction