Feature:1. 1. Handsfree calling and highquality sound: The Bluetooth earphone adopts Bluetooth 5.3 chip technology, which provides clearer sound and a stable connection, allowing you to hear clear calls, just like you are communicating with others face to face. Don t worry about interruptions when posting music and calls.2. 2. LED charging case and 180 hours standby time: Builtin 500mAh battery LED charging case, Bluetooth earbuds with microphone can be fully charged within 1 hour. The earphones are used with the charging case and can also provide 78 charges for the wireless earphones.3. 3. Comfortable inear design: The inear design can fit the left/right ear more comfortably. The ear hook can be rotated 180 vertically and 360 horizontally, flexible ear hook, is comfortable to wear. It s light and comfortable enough to wear for hours.4. 4. Mute function and active voice: The mobile phone Bluetooth headset supports voice assistants. With a builtin microphone, it also allows you to answer or reject incoming calls and mute the Bluetooth headset. Easily mute/unmute by pressing the mute button.5. 5. Two charging methods and connect two devices: You can charge your Bluetooth earphones with a typec charging cable or charging case. It can also connect 2 devices at the same time, keeping your life and work separately. It is ideal for office and driving environments.Specification:1. Headphone parameters:Bluetooth version: V5.3+EDRWireless frequency: 2.4GHZSupported protocols: A2DP.AVRCP.HEP.HSP.EDRTransmission distance: 10 metersBattery capacity: 60mAhCharging voltage/current: 5V/1APlay/talk time: about 10 hoursCharging time: about 1 hourStandby time: 180 hoursSpeaker impedance: 13,10%Microphone sensitivity: -42DbWorking temperature: -10-50Single headset weight: 12.5GSingle earphone box size: 125*74*18MMWeight of a single headset package: 42G2. Charging case parameters:Input voltage/current: 5V/1ABattery capacity: 500mAhWeight of complete set with charging compartment: 153gHeadphone + charging compartment net weight: 78g.Package List:1*Headphone1*Charging Compartment1*Charging Cable1*Instruction2*Ear CapsNote:Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.Due to manual measurement, there is a tolerance in the product size.