1. Bluetooth program: V5.3 2. Speaker: 13mm copper ring speaker (bass effect is obvious) 3. Chip: BlueTrum 4. Use time: about 5-6h 5. Charging time: about 1h 6. Communication distance: about 10-15m without obstacles 7. Charging interface: USB 8. Battery capacity: 50mAh 9. Frequency: 20Hz-20KHz 10. Impedance: 32 ohms 11. Sensitivity: 85dB/mW 12. Waterproof rating: IPX4 13. Weight: about 6.5g
Features: 1. External sound quality, safe travel, does not affect the communication 2. Silicone tail, soft and comfortable, clip ear without pain 3. One-button design, more convenient for music calls 4. Ear buckle support, not into the ear design, skin-friendly material, comfortable to wear 5. HIFI stereo surround sound, copper ring speaker, three frequency balance, micro-permeable holes, reduce noise 6. With light design, beautiful and shiny 7. Anti-leakage ear holes, painless to wear 8. Simple design, smooth lines, lightweight and portable
