1. Super Mini Invisible Earphones, Comfortable To Wear, As Small As A Heart, Smaller Than The Palm Of Your Hand, Easy To Carry 2. Using The 5.3 Bluetooth Protocol, Compared With The Previous Generation, The Transmission Speed Is Increased By 100%, And The Transmission Capacity Reaches 800%, Which Is Faster And More Stable. 3. 13mm High-Quality Copper Ring Speaker, Combined With A High- Speed Composite Diaphragm, Makes The Bass Rich, Full And Powerful, Creating An Immersive Listening Feast. 4. Take Out The Earphones, You Can Listen Freely And Automatically Search For Signals (Manual Pairing Is Required For The First Time) 5. Charging For Half An Hour, Listening For 4 Hours Charging Interface: Type-C Bluetooth Version: V5.3 Headphone Capacity: 25mA Headphone Type: SEMI-In-Ear Charging Compartment Capacity: 230mA Speaker: 13mm Standard Voltage: 3.7V Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:Black Material:PC+ABS Package Contents: 1 Pair x Bluetooth Headphones 1 x Data Cable 1 x Instructions In Chinese And English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.