Features: 1. Made of high quality ABS material, sturdy, durable and long service life. 2. Small size and lightweight, easy to carry and store, convenient to use. 3. Once charging, bluetooth earphone can play for more than 3-4 hours, on the road, the portable charging box can last up to 20 hours. 4. Simple and high technology equipment, when removed from the charging box, the wireless earphone will automatically open and connect to the phone. 5. Built-in bluetooth 5.0 chip, stable signal connection, fast transmission speed, long transmission distance. 6. Noise reduction technology, clear sound quality. Perfect fits your ear, ergonomic design, convenient in-ear design, safe and comfortable. 7. Suitable for making call while driving, daily life, running. Specification: Condition: 100% Brand New Item Type: Wireless Bluetooth Earphone Model: T18S Material: ABS Color: As Pictures Shown CPU Frequency: 96MHZ Working Voltage: DC 2.2V-5.5V Signal to Noise Ratio: ≥92dB Effective Distance: Barrier-free 10m Frequency Response Range: 20HZ-20KHZ Sensitivity: 98dB Impedance: 32Ω Transmission Power: Class 2 Headphone Battery Capacity: 50mA Charging Box Capacity: 500mA Charging Input: 5V /500mA charging Time: About 1 Hour Using Time: Call for 4-7 Hours and Play Music for 3-4 Hours Stand-by Time: 10-15 Days Package List: 2 x Earphone 1 x Charging Box 1 x Manual 4 x Ear Muff 1 x USB Cable 1、Made of high quality ABS material, sturdy, durable and long service life. 2、Small size and lightweight, easy to carry and store, convenient to use. 3、Once charging, bluetooth earphone can play for more than 3-4 hours, on the road, the portable charging box can last up to 20 hours. 4、Simple and high technology equipment, when removed from the charging box, the wireless earphone will automatically open and connect to the phone. 5、Built-in bluetooth 5.0 chip, stable signal connection, fast transmission speed, long transmission distance.