Description: With ergonomic, collar clip and one-key telescopic design, this earphone is comfortable and convenient for you to wear and use. Characterized by stereo surround and intelligent noise reduction, this earphone provides you with wonderful music and clear calling. It is made of high-quality ABS and electronic components material. The length of the product is 5.6cm, the width is 2.5cm and the height is 1.3cm. It is suitable for business, leisure, driving, running, sports, outdoor, travel, etc. Item Name: Earphone Material: ABS, Electronic Components Bluetooth-compatible Version: 5.2 Transmission Distance: 10 Meters Music Time: 20 Hours Standby Time: About 180 Days Charging Time: 1-2 Hours Charging Box Battery Capacity: 300mAh (Included) Frequency Response Range: 20Hz-20000Hz Language: Chinese and English Bilingual Switch Waterproof: IPX5 Adaptation System: Suitable for iPhone and for Android Mobile Phones, and Digital Devices with Bluetooth-compatible Features: Collar Clip Design, ENC Noise Reduction, Call Vibration Reminder Size Details: 5.6cm x 2.5cm x 1.3cm/2.2" x 0.98" x 0.51" (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 1 x User Manual