Abodos Wireless Headphone - As-Wh33 - Black

Specification 1.wireless version: 5.3 2.support profiles: a2dp,avctp,avdtp,avrcp,hfp,spp,smp,att,gap,gatt,rfcomm,sdp,l2cap 3.operation distance: 10m 4.frequency range: 2.402 -2.480 ghz 5.speaker: ø40mm 6.impedance: 32ω 7.frequency response: 20hz-20khz 8.anc amplitude: 25+/-3db 9.anc frequency range: 20-1000hz 10. rechargeable lithium battery: 400mah 11. anc on music playing time: 8h 12. anc off music playing time: 26h 13. anc on talking time: 7h 14. anc off talking time: 24h 15. charging time: 2.5h