"1. Bluetooth 5.4; Chip: JLAC7003 2. Battery capacity: 200 mAh; Charging time: 2 hours 3. Usage time: 30 hours of music; 20 hours of calls 4. Material: ABS+TPE; Earphone length: 90 cm; Weight: 26 g 5. Supports prompt sounds in Chinese and English: double-click the multifunction button when not associated"
