Grade of Waterproof: IPX7 Speaker: 8mm * 2 and 6mm * 2 Bluetooth Version: V5.0 Transmission Distance:15-20M Talking Time:6.0 Hours Music Time:6.0 Hours Battery Capacity:45mAh Product Dimensions:45.6*25.7*15.5MM Charger box battery capacity: 450mAh Charger box dimensions: 72.3*31.4*29.4MM Function: waterproof, microphone, supports music and call, detached binaural when taking a call mini and portable, easy to carry away skip the next/last songs pair and turn on/off automatically double loudspeaker to improve the sound quality Packing information: â?¢ MEAS Carton size: 35.2*48.5*21cm â?¢ Master carton weight : 11.0kg â?¢ packing : 100 PCS/CTN â?¢ Packaging size ( gift box size ): 98*92*32mm â?¢ Product weight(with accessories) :100 g Accessories: Instruction manual, charging station, data cable, ear tips Certificate: CE/FCC/ROHS Warranty: 1 Year