Description: With Bluetooth-compatible 5.2 chip, this earphone can achieve stable connection, strong anti-interference ability, low power consumption and ultra low latency. Active noise reduction technology enables this earphone to effectively reduce noise interference and allow you to enjoy better call quality. It is constructed of abs material. The length of this product is 5.4cm, the width is 5cm and the height is 2.3cm. It is suitable for all Bluetooth-compatible devices such as mobile phones, tablets and so on. Item Name: Wireless Earphone Material: ABS Bluetooth-compatible Version: V5.2 Transmission Range: 10 Meters Sound Channel: Stereo Usage: Earbud Type Whether Single Binaural: Bilateral Stereo Chip Type: for Qualcomm Charging Case Battery Capacity: Built-in 400mAh Rechargeable Battery (Included) Earphone Battery Capacity: Built-in 50mAh Rechargeable Battery (Included) Decoding Protocol: AAC/SBC Frequency Response Range: 20Hz-20KHz Listening Time With The Charging Case: Open ANC:about 12-15 Hours, Close ANC: about 15-20 Hours Features: Ergonomic, HiFi Sound, Long Battery Life Size Details: LxWxH: 5.4cm x 5cm x 2.3cm/2.13" x 1.97" x 0.91"(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 Pair of Wireless Earphone 1 x Charging Case 1 x Data Cable 1 x User Manual