True Wireless ABS earphones with microphone and charging box of 250mah. Transmission by bluetooth 5'1, autonomy up to 1'5h, frequency 20Hz-20KHz, 98 dB and impedance of 32Ω. Each earphone has a multifunction button and the case has a microUSB port to be charged. Supplied in a white gift box.Headphone: 47 x 19 x 8 mm | Box: 55 x 64 x 26 mm