Long-Lasting Usage & Lightweight Design: Up to 4 hours talk time / music time (Playtime varies according to volume level and audio content); 145 hours standby time and 1-2 hours charging time; Super Light Weight Design, the net weight is only 3.17 ounces; you will feel nothing for gym and workout
Bluetooth 4.1 with EDR. Supports HFP 1.6, HSP 1.2, AVRCP 1.4 and A2DP 1.2 Bluetooth profiles. CVC6.0 intelligent noise reduction. Stereo sound. 3 meters range. Charging time of 2 hours with around 100 hours of standby and 3.5 hours of usage time. Pairing instructions: power on and enter paring mode (Press the power on button for 5 seconds until the blue and red LED light quickly flash alternatively with paring voice). Use a Bluetooth function mobile phone or other Bluetooth master device. Try to search the device and connect it with connected voice. Press the power on button once while the call is coming/end call.