Using intelligent noise reduction technology, the earphone can filter noise to make the call as clear as a face-to-face interview. With a multi-function button, the earphone can switch up and down songs, intelligently call the voice assistant and call back the phone, etc. It is made of high-quality ABS and electronic components, which is reliable and durable. The length of the product is 2.2cm, the width is 1.8cm and the height is 1.2cm. The earphone is suitable for mobile phone, tablet computer and other digital devices with Bluetooth-compatible. Item Name: Earphone Material: ABS, Electronic Components Model: L20mini Earphone Type: Both Left and Right Ears Can Be Used Bluetooth-compatible Version: 5.2 Bluetooth-compatible Profile: Handsfree Earphone Supported Protocols: HEP/HSP/A2D/AVRCP Transmission Range: More Than 10 Meters Battery Type: 55mAh Rechargeable Battery (Included) Charging Time: About 1.5h-2.5h Working Hours: Music 4-6 Hours Standby Time: About 100-150 Hours Frequency Response: 20Hz-20000Hz Wearing Style: In-ear/Hidden Earphone Applicable Type: Mobile Phone, Tablet Computer and Other Digital Devices with Bluetooth-compatible Features: Noise Reduction, Multifunction Button, High Fidelity Sound Size Details: 2.2cm x 1.8cm x 1.2cm/0.87" x 0.71" x 0.47" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Earphone 1 x Charging Cable Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin