Description: The earphone has life waterproof performance, which is not afraid of sweat and rain. And it can prevent entanglement and slipping because of its magnetic adsorption design. Using dual moving coil quad-core and four-speaker design, the earphone provides you with 9D surround sound. And it can be played by inserting a card. It is made of high-quality plastic and metal material, which is lightweight and durable. The length of the product is 11cm, the width is 8cm and the height is 2cm. It is suitable for running, sports, outdoor and travel, etc. Item Name: Bluetooth-compatible Earphone Material: Plastic, Metal Model: Q18 Bluetooth-compatible Version: 5.0 Talk Time: 20 Hours Listening Time: 20 Hours Charging Time: 1-2 Hours Standby Time: 300 Hours Transmission Distance: 10-15 Meters Battery Capacity: 150mAh (Included) Charging Interface: Micro USB Waterproof Grade: Life Waterproof Applicable System: for iPhone and for Android Mobile Phones and Digital Devices with Bluetooth-compatible Features: Magnetic, Anti-winding, 9D Surround Sound Size Details: 11cm x 8cm x 2cm/4.33" x 3.15" x 0.79" (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 Bluetooth-compatible Earphone 1 x Charging Cable 1 x User Manual