Neckband (LuduanV4)
White-box Solution
| BLUETOOTH | Communication System |
BT4.2 + BLE(Ambiq Micro’s ultra-low power Voice-on-SPOTTM platform)
 |
| Supported Codec | SBC, AAC, APTX | |
| SPEAKER | Driver | Φ5.8mm |
| Sound Output | 108dB at 1KHz | |
| Frequency Response Range | 20Hz-20kHz | |
| MICROPHONE | for System Wake Up | 1 pcs low power supply Mic |
| for Voice Control | 2 pcs digital MEMS Mic | |
| 2 Mic Beamforming and Noise Reduction | ||
| for Telephone Call | 2 pcs Analog MEMS Mic | |
| cVc™ Noise Cancellation Technology | ||
| BATTERY | Capacity | 3.7V/340mAh |
| Working Time | Play music for 15 hours | |
| Charging Time | Approx. 2 hours | |
| VOICE ASSISTANT | “Alexa” Wake up Word | |
| Online Speech Recognition with Alexa | ||