Options for this item: Colour:Green Body:M Overview: IT 5.1 technology brings high -speed data transfer speed, stable performance and low power consumption. With real wireless stereo technology, you can use the headset alone or use it as a pair. It is equipped with a 250 mah charging box to store and charge headphones. The internal microphone offers a clearer and more realistic sound. It will offer you an excellent user experience. Features: CT 5.1 technology provides higher data transfer speed, more stable and faster connection and lower power consumption. Real wireless double ear design, left and right headphones are separated. It can be used alone or as a pair. Touch control design, no pressure in your ears. It is easy to control music and calls and activate the voice assistant. In the internal microphone in both ear -tulled headphones with smart noise reduction feature, provides a clearer speech sound in stereo mode. 250 MAH charging box can charge and store headphones. The 30 mAh battery on each headset provides about 5 hours of music time. Features: Brand Name: Lenovo Model Number: LP40 IT version: 5.1 Transmission distance: up to 10m (no obstacle) drive diameter: 10mm frequency range: 20-20kHz sensitivity: 109DB3DB Empedance: 32Ω Charger Box Battery Capacity: 3.7V 250mah Kulaki Battery Battery Capacity (each): 3.7V 30mah music play