CASQUE HOCO BLUETOOT W51

W51 Delightful, wireless and wired headphones, 400mAh battery for 46 hours of music and calls, 180 hours standby, supports BT, TF card and AUX modes 1. BT version: v5.3. Chip: AC7006F4. 2. Supported protocols: A2DP, AVRCP, HSP, HFP. 3. Transmission distance: 10m. 4. Transmission frequency: 2.4GHz. 5. Speaker unit: 40mm. 6. Impedance: 32Ω ± 15%. 7. Frequency response: 20-20000Hz. 8. Sensitivity: 98dB ± 3dB. 9. Battery capacity: 400mAh. 10. Charging input: DC5V, Type-C. 11. Charging time: 2 hours. 12. Talk / music time: 46 hours (80% volume). Standby time: 180 hours. 13. Lightweight, soft earmuffs, rotatable earcups, adjustable headband. 14. Supports songs switching, songs play / pause, volume adjustment. 15. Supports BT, TF card, AUX playback modes. 16. With microphone. 17. Accessories: Type-C charging cable × 1, AUX cable × 1. 18. Sizes: 208 × 195 × 77mm. 19. Weight: 262g.