Bluetooth Version: 5.0 Operating Distance: 10 m Chipset: Jieli Profiles: HFP, HSP, A2DP, AVRCP Charge Input: 5 V DC, 0.1 A Sensitivity: 105 dB Driver: 10 mm Impedance: 32 ? Charge Time: 2 Hours Playback Time: 5 - 10 Hours Battery Capacity: 120 mAh Frequency Response: 20 Hz – 20 kHz PRODUCT DIMENSIONS: 160 (W) x 28 (D) x 196 (H) What's in the box 1 x 'Bounce Bachata Series Bluetooth Earphones with Neckband 1 x Instruction Manual 1 x USB Charging Cable 1 x 3 x Spare Earbud Cap Sizes