E1 Smart Noise Reduction Unilateral Ear-mounted Bluetooth Earphone (Black Blue) Filter-USB Sound Microphone impedance: less than or

Microphone impedance: less than or equal to 2

Compatible motherboard: MicroATX

100% perfect fitting

40HQ: 745 cartons * 240 pcs = 178800 pcs

AA battery * 1

E1 Smart Noise Reduction Unilateral Ear-mounted Bluetooth Earphone (Black Blue) Filter-USB Sound Microphone impedance: less than orFeatures: 1. Bluetooth 5. 0 chip, faster and more stable connection, no delay 2. Intelligent noise reduction, high definition call 3. Multi function buttons, one handed operation, safer driving 4. Support Chinese and English switching, call voice assistants, answer hang up calls, adjust volume, previous song next song, etc. 5. It is comfortable to wear and will not fall off 6. Life grade waterproof and sweat proof 7. Compatible with all Bluetooth