Air 31 Sports Wireless Earphone Transparent Low latency Gaming Bluetooth headset

Notes on use. For the first use, you need to tear off the insulation sticker first, and then use it. ENC noise reduction. LED digital display. Chip Bestechnic BES2300IU. SBC AAC. Bluetooth 5.3. Charging case 500mAh. About 4 hours of music, or 3 hours of calls. IPX4 waterproof. Specification. Product name: Amgras Future IV Pro. Bluetooth version chip: v5.3 Bestechnic BES2300IU. Audio decoding protocol: SBC/AAC. Frequency response: 20Hz~20kHz. Transmission distance: 10m. Headset battery: 40mAh. Headset working time: 4 hours music mode). 3 hours calls mode). Charging case battery: 500mAh. Total working time: About 20 hours. Headset charging time: About 1 hour. Charging case charging time: About 2 hours. Charging case input: DC5V0. 4A. Sizes: 115x96x45mm. Weight: About 43g. Waterproof rating: IPX4. Certification: CE, RoHS, FCC, EAC, EC, BQB, UL62368 test report. Feature. 1: LED digital display. Feature. 2: ENC noise reduction, clear calls. Feature. 3: Support fast charge, charge for 10 min