1. LED Digital Display, Bluetooth 5.3, 42h Battery Life, Space Capsule Design 2. The Charging Compartment Displays The Battery Power Through Numbers, And The Left And Right Earphones Display The Battery Power Through A Progress Bar. 3. Supports Instant Flash Charging, Charging For 10 Minutes And Listening To Music For 1 Hour. No More Battery Anxiety In Daily Use. 4. Fits The Auricle And Is Not Easy To Fall Off. The Ultra-Light Body Is Not Tiring To Wear For A Long Time. PU Composite Membrane Acoustic Technology Provides Surging Sound Quality. 5. Enhanced Dns Calls, Accurate Sound Pickup, Environmental Noise Elimination, And The Other Can Hear More Clearly<br><br>Wearing method:in-ear type Bluetooth chip:AD6973D4 Bluetooth:V5.3 Bluetooth audio decoding:AAC, Support protocols:, HFP, A2DP, AVRCP Working frequency:2402-2480KHz Headphone battery capacity:35mAh Charging compartment battery capacity:500mAh Speaker impedance:16Ohm Rated power:2x3mW Drive unit:Φ6mm (PU composite film) Music playback time:about 7 hours (70% volume) Total play time:about 42 hours (70% volume) Talk time:about 5 hours (70% volume) Headphone standby time:about 48H (connected state) Headphone charging input:5V 200mA Charging box charging input:5V 1A Charging input port:Type C Number of times the pair of earphones can be : about 5 times Headphone charging time:about 1H Charging time of charging case:about 1.5H Waterproof level:IP54 Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Colour:C:Starry Black Material:ABS+PC<br><br>Package Contents: 1 Pair * Bluetooth Headphones 1 * Charging Cable<br><br>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.