Wireless Earbuds BT5.3 Earphone Panoramic HiFi Sound Effect 120 Hours Super Long Standby Time Large Battery Suitable for All Ear Types Compatible with Android, iOS or Windows for Computer and Network

Specification:Optional color: Black / WhiteBT version: BT V5.3Support BT profile: a2dp 1.3\avctp 1.4\avdtp 1.3\ avrcp 1.5\ hfp 1.5 \spp 1.0\rfcomm 1.2\pnp 1.3\ hid 1.0\sdp core4.2\l2cap core 4.2?BT working frequency: 2.402GHz-2.480GHzReceiving sensitivity (TYP) -85dBmBT range: ¡Ü10mRating: 3mWHeadset RF power level: Class2Power amplifier type: chip built-inAudio signal-to-noise ratio S/N: ¡Ý90dBFrequency response: 50Hz～20KHzSpeaker type: full-range speaker ¦µ16.2 32ohmMIC: silicon microphone, -42dB ¡À3dB, -42dB ¡À3dB, -42dB ¡À3dB, -42dB ¡À3dBBattery: 400mAh 3.7V (Case); 55mAh (single Earbud)Standby time: approx. 120HMusic time: about 8-10 hours (80% volume)Talk time: about 8 hours (80% volume)Charging time: 1.5 hoursEarbud size: 5.7*4.1*1.1CMCharging case size: 108*6.4*2.9CMPackage size: 12.9*10.6*3.5CM?Package weight: 115gPackage list:1* Earbuds1* Charging cable1* User manual