Bluetooth Version: 5.3 Supported Protocols: HFP, HSP, A2DP, AVRCP SPP and PBAP Supported Codecs: AAC, SBC, mSBC Playtime (50% Volume): 24~25 hours Main Materials: Outer: Modal Twill Fabric, Inner: Heather Gray Milk Silk Fabric, Filling: Cup Cotton, Silicone; Battery Capacity: 3.7V 200mAh, Connection Distance: ≥15 meters, Charging Time: ≤100 minutes, Dimensions: Length 709.8mm, Width 90.5mm, Thickness 30.3mm; Weight: Approx. 80g Power Consumption (50% - Full Load): 6-10mA Speaker (Size, Diaphragm Material): Ф6mm, Composite Diaphragm Microphone (Material, Quantity per Ear): 1pcs, Silicon Microphone Operation Method (Touch, Button): Button Antenna Type (FPC, Ceramic): Ceramic Waterproof Rating: None Number of Indicator Lights: 2x LEDs Charging Port: Type C Color: Gray Material: Modal Twill Package Contents: 1* Eye Mask Headphones Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.