EVM"Chip/Chipset: JL 5.2 Earbuds Battery: 50mAh Charging Case Battery: 400mAh Headphone Playback Time/Earbuds Playback Time: 5H Audio Playback Time/Speaker Playback Time: 4H Charging Port: Type C Button Mode: Touch Speaker: φ10mm Material: Silicone+ABS"