Description: Using bluetooth-compatible version 5.1, it has lower power consumption, faster transmission, strong anti-interference and more stable signal. Bluetooth headphone has HiFi lossless music function, which allows you to enjoy the hearing feast. Wireless headphone is easy for you to carry because it has folding design. Made of high-quality ABS material, it is lightweight and durable. The earmuffs are made of soft material. The design of earphone is precise, delicate and compact. The length of the product is 18cm, the width is 19cm and the height is 7.5cm. The 40mm large dynamic ring unit combined with large earmuff structure makes the earphone powerful in low frequency and more powerful in bass. It is suitable for mobile phone, tablet, computer and MP4, etc. Item Name: bluetooth-compatible Headphone Material: ABS Model: H2 Bluetooth Version: 5.1 Bluetooth Mode Support: A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5 Battery Capacity: 650mAh (Included) Frequency: 2.402-2.480GHZ, 2.4G ISM Band RF Performance: -84dBm Frequency Response: 20Hz-20kHz Signal to Noise Ratio (SNR): 70Db Normal Charging Time: 1-2 Hours Endurance: 24 Hours Standby Time: 300 Hours Use: Wireless Headphone, Voice Headphone Other Features: Support Status Indicator, Charging Indicator Display Features: Colorful LED Lights, HiFi Sound Quality, Long Battery Life Size Details: 18cm x 19cm x 7.5cm/7.09" x 7.48" x 2.95" (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 Headphone 1 x Charging Cable 1 x Audio Cable 1 x User Manual Using bluetooth-compatible version 5.1, it has lower power consumption, faster transmission, strong anti-interference and more stable signal. Bluetooth headphone has HiFi lossless music function, which allows you to enjoy the hearing feast. Wireless headphone is easy for you to carry because it has folding design. Made of high-quality ABS material, it is lightweight and durable. The earmuffs are made of soft material. The design of earphone is precise, delicate and compact. The length of the product is 18cm, the width is 19cm and the height is 7.5cm. The 40mm large dynamic ring unit combined with large earmuff structure makes the earphone powerful in low frequency and more powerful in bass. It is suitable for mobile phone, tablet, computer and MP4, etc.