Highlights: Bluetooth 5.2:Single playback time increases 40%, lower power consumption, more stable. Low Latency Smooth Control:There is almost no delay for games and videos, and the sound and control are precisely matched. 12mm Dynamic Driver Powerful Bass:12mm large dynamic driver accurately adjusts every detail to achieve a perfect balance of bass, midrange, and treble. AAC Audio Decoding Capture Every Sound Detail:AAC audio decoding supports higher resolution while increasing resource compression rate, effectively capturing every sound detail. 3.9g semi in-ear Comfortable Wearing:With ergonomic design, it offers wearing stability and comfort when in use. Specification: Model: GT6 bluetooth version: Bluetooth 5.2 Operation range: 10m (open space with no obstacle) Earbud charging time: approx. 1.5hr Charging case charging time: approx. 2hr Playback time: approx. 5.5hr Battery life with charging case: approx. 20.5hr Battery type: li-ion Battery capacity: (single earbud) 35mAh Battery capacity: (charging case) 310m Ah Support protocol: HFP/HSP/A2DP/AVRCP Main functions: play/pause music, next track,call reminder, binaural call,voice reminder Package Contents:1 x Haylou GT6 Earbuds 1 x Charging Case 1 x Charging Cable 1 x Manual