Lightweight Design allows you to pocket it When power case is charging, red light is flashing and it turns to be on when it is full power.When the earbuds are charging, blue light of the power box is on and to be off when they are full power.When the power case is low power, blue light flashs while charging. Note: Do not use fast charger more than 5V / 1A, or the charging box will be damaged! With IPX6 waterproof technology, the earbuds is against from water and sweat. So there is no worry about intense exercise with heavy sweat. Music and gaming dual modes Music Mode 5D Surround Stereo Gaming Mode 60ms Low Latency Wireless Bluetooth Earbuds with Deep Bass HIFI sound qualityLong battery lifeBinaural HD callOne-step paringMusic / Game modesSummon Siri Bluetooth 5.2 The headset offers stable Bluetooth within 33ft / 10m. It supports Bluetooth agreement like HSP / HFP / A2DP / AVRCP