Features:* Low delay BT 5.1 chip, provides quick pairing, fast transmission speed, stable connection and low power consumption.* 10mm high-quality moving coil unit, delivers lossless stereo sound quality with high frequency, bright and transparent.* Ergonomic design with skin-friendly silicone ear tips, makes it stable and comfortable to wear even for a long time.* Adopt call noise reduction technology, which effectively eliminates ambient noise, bringing a clear binaural call.* With smart button control, you can easily play/pause, switch songs, adjust volume, answer/reject phone calls, summon voice assistant, etc.* IPX4 waterproof level, allows you to deal with daily water activities easily and enjoy sports freely, no fear of rain or sweat.* Inbuilt LED-indicators, shows clearly the charging status and battery level of charging case.* The charging case is compact and lightweight, taking up little place, easy to carry and store. Note:* Please read the user manual carefully before use.* There may be slight errors due to manual measurement.Specifications:Model: A6RMaterial: ABSColor: BlackBT Version: 5.1Earphone Battery: 40mAhCharging Box Battery: 250mAhTransmission Distance: about 10mCall Time: about 3HPlay Time: about 2.5HStandby Time: about 80H Charging Time: about 1-2HBT Protocol: HFP/A2DP/HSP/AVRCPWaterproof Level: IPX4Charging Case Size : 6.2 * 4 * 2.7cm / 2.44 * 1.57 * 1.06inItem Weight: 34g / 1.2oz (with charging case)Package Size: 14.2 * 8 * 3.1cm / 5.59 * 3.15 * 1.22inPackage Weight: 59g / 2.08ozPackage List:1 * BT Earphones1 * Charging Box1 * Charging Cable1 * User Manual (Chinese, English)