Volkano Asista N01 Series Bluetooth Earphones Earbud Caps: Small, medium and large caps are included; you can choose whichever gives you the best fit In-Line Remote: You can easily adjust the volume, skip tracks, play, pause, answer calls and activate Siri or Google Assistant using the in-line remote Neckband: Reduces the weight of the earphones on your ears for increased comfort and stability, ideal for sports Bluetooth Operating Distance: 10 m Chipset: BK Bluetooth Version: 4.2 Bluetooth Profiles: HFP, HSP, A2DP, AVRCP Playback Time: 5 – 7 hrs Battery Capacity Charge Time: 2 hrs Battery Type: 110 mAh Impedance : 32 O Sensitivity: 98 dB Driver: 10 mm ICASA : TA-2017/2436 Power Requirement: 5V DC , 1A Frequency Response: 20 Hz – 20 kHz What's in the box 1 x Volkano Asista N01 Earphones 1 x USB Cable 1 x Sml, Med & Lrge Earbud Caps 1 x Carry Bag