1, Material: ABS,size: 514613mm, weight: 12g-2. Bluetooth 5.0; Chip: JLJL AC6956A-3. Battery capacity: 140mAh; charging for about 2 hours-4. Talk/music time: 8 hours-5. Output interface: 3.5mm-6. Compatible with audio equipment with 3.5mm input interface (car, speaker, earphone, etc.)