1x Charging Cable Bluetooth distance: 10m Charging Time: about 1 hours for earphones, 1.5 hours for charging box Battery box battery: polymer lithium battery 280mAh One to two connections, you can connect to two phones at the same time. Smart compatibility: Support all Bluetooth mobile phones tablets notebooks QQ music movies etc. all mobile phones. Frequency: 2.4-2.48 1x Charging Box Charging time: about 1-2 hours Speaker sensitivity: 105dB Speaker bandwidth: 20-20KHz A of Bluetooth 5.0, faster and more stable. Real wireless Bluetooth headset, the left and right channels are separated, automatically connected, and the ears can be used separately. Charging voltage: 5V Standby time: 80 Hours Headphone battery: polymer lithium battery 45mAh HFP / A2DP / HSP / AVRCP Standby time: about 80 hours 2x Earphones (left and right earphones) Call time: about 4 hours IPX5 , binaural split design, single ear and both ears can be worn at will. Bluetooth version: V5.0 Microphone sensitivity: - 42 +/- 2db Working voltage: 3.2 - 4.2V Speaker impedance: 32Ω One-button control for easy on/off, play/pause/ music, hands- calling, driving, working, meeting, running. Music time: about 3 hours Colour: Black After being taken out of the 280mAh charging box, it will be automatically paired and powered. 1x User Manual 2x Pairs of Ear Tips Music Play Time: about 4 hours (depends on music volume) Gadgets for Women Work Out Headphones