Overview:As your personal music device， 1 gram of weight is enough to affect using experience， so as a good headset， lightweight is a must. Compare to 15-20 grams weight of other headsets， customize only 11.5 grams of N2， has created unprecedented breakthrough. Lightweight as nothing on ear， but accompany with you in every moment.N2 is wireless and humanized for you. Connect to 2 phones simultaneously. Voice command say ¡°Yes¡± or ¡°No¡± decide whether to pick a call; Press MF button 2 seconds， then release， to activate voice assistant of mobile phone， e.g. Siri(Phone feature); last but not the end， press MF button and Vol(-) simultaneously to choose voice promts(Chinese/English).Weight: 11.5gDimensions: 25.59 in x 0.94 in x 0.59 in (65cm x 2.4cm x 1.5cm)Brand: BluedioModel: N2Quantity: 1PieceMaterial: PlasticColor: BlueBluetooth Version: Bluetooth V4.1Frequency Range: 2.4GHz-2.48GHzOperating Distance: Up to 10M(Free Space)Bluetooth Profiles: A2DP， AVRCP， HSP， HFPFrequency Response: 20Hz-20kHzTalk/Music Time: About 5 hoursStandby Time: Up to 180 hoursCharging Time: 2 HoursOperational Temperature: -10 to 50¡úCable Length: 58cmSpecial Function: RemPairs+Echo Cancellation+Voice Dial(mobile phone)Features:Powerful functions， especially for youNoodle Shape Cable£ºAntiwind， easy to comb， safe environmental protection， high temperature resistant， can be used in outdoor for a long time11.5 grams: Probably the lightest headset in the worldT-Light in-ear design: Custom fit in-ear buds ensure long lasting comfort in rigorous environmentCrystal clear sound: Crafted with built-in 10mm dynamic driver， and CCAW voice coil， created surprising full-bodied timbre， clear and bright， restore crystal clear soundWind noise reduction: Special headset design and electronics technology filter wind noise， improve call claritySweat-proof: Effectively prevent sweat and rain interfere with headset operation Multipoint pairing: Connect to 2 mobile phones simultanously Voice Command: Say "Yes" or "No" to pick or reject call， add convenience to your lifePacking List:1 x BT sports headset1 x USB charging cable(95cm)1 x User manual2 x Horns shape silica gel earplugs3 x Soft ear cap(S/M/L)