1. Long-Lasting Business Life Hd Calling 2. High Performance, Sophisticated And 3. According To The Shape Of The Human Auricle, Disperse The Force Points Of The Ears And Let The Ears Bear The Force Uniform And Stable, Not Easy To Fall Off, Can Only Be Worn On The Right Ear 4. Can Listen To Music Continuously, After 1 Charge5 Hours Of Powerful Battery Life 5. Accurately Track The Speaking Position And Effectively Block 90% Of The Surrounding Noise Clear Calls Even In The Dark And Busy City Product Model: S10 Bluetooth Earphone Bluetooth Solution: Zhongke Lanxun Product Speaker: 8cm Copper Ring Speaker Standby Time: 180 Hours Working Time: 5 Hours Charging Time: About 1 Hour Effective Distance: 10-15 Meters Without Obstacles Headphone Battery Capacity: 50mAh Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Colour:Black Material:plastic Package Contents: 1 Pair x Bluetooth Earphone 1 x Ear Cap 1 x Charging 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.