brand- p9. model name-p9. colour-black. wireless communication technology bluetooth including a microphone. included components- charging case. material- plastic. cable featuree- retractable. space-saving design. unique foldable design not only saves space but also makes it portable. soft protein padding flexible closed-back fix. easy to storage and carry. comfortable earmuffs. auricle with a soft sponge and leayher material inside,the 40mm subwoofer brings silence is a sterea experience. never power off.built-in speakerphone for hands-free calling, 300mah lithium-ion rechargeable battery offers 10 hours talk time or music playback. bluetooth 5.0, signal stability, speed, power saving . hd mic, hd sound, much more clear music and talking. collapsible for easy storage, flexible and durable headband, protein leather ear cups allow prolonged use. microphone noise reduction echo cancellation. detailed specifications: brand: berjalan model: p9 product name: bluetooth earphone colour: black load power: 50mw bluetooth version: bluetooth 50 headphone frequency response range: 20hz-20khz supply voltage: 3.3-4.2v snr: 100db working current: 30ma working range up to 15 meters frequency response 5-2500hz sensitivity 105db music time 8-10 hours standby time up to 10 7bhours frequency range 2.4 ghz-2.48 fgz transfer mode: moving coil type frequency range: 24ghz-2480ghz charging voltage: 5v horn specification: 40mm charging current: 5v500ma impedance: 32 charging interface: micro usb plug type: 3.5mm stereo interface battery capacity: 200 ma weight: 150g/5.3oz product list: 1 x bluetooth earphone 1 x usb charging cable