Features: brand new and high quality Bluetooth-compatible 5.0 stable and continuous connection, bring better connection performance, call effect, compatibility has been significantly improved. The wireless in-ear earphones are made according to the ear canal and fit perfectly. This earphone can not only ensure the comfort of wearing all day, but also improve the sound insulation effect of the earphone. Quick pair as soon as you take out the earbuds from the charging for case. The game mode has low latency and smooth gameplay without any delay. Specifications: Material:ABS+PC Color:Black,Yellow,(Optional) Bluetooth-compatible Version: 5.0 Bluetooth-compatible Support Protocol: HFP, HSP, AVRCP, A2DP Support Decoding Method: BC/AAC Headphone Power: 8mW Audio Frequency Range: 20Hz20KHz Charging Voltage: for DC 5V Operating Range: About 33feet Barrier-free Transmission Distance (10meters Barrier-free Transmission Distance ) Charging Port:Type-C for DC 5V Charging Box Capacity:350mAh Music/Talking Time:About 4 hours Frequency:2.402 GHz2.483GHz Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Pair Bluetooth-compatible Earphones 1x Charging Box 1x User Manual