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The FRB 400H Wireless Smart Neckband integrates Bluetooth 5.4 and a TF card slot for dual-mode audio playback. With 50 hours of music time, the internal battery supports long-duration use between charges. A 400-hour standby rating keeps the hardware operational during extended load shedding.
Key Features
- 400-Hour Standby: 400 hours of idle power retention. Hardware stays ready for use after weeks of inactivity.
- TF Card Slot: Integrated storage expansion for local MP3 playback. Plays music directly without requiring a smartphone connection.
- Bluetooth 5.4: High-speed wireless protocol for stable 10-meter data transmission. Reduces audio lag during video playback or mobile gaming.
- 50-Hour Playtime: 50 hours of music and 40 hours of calls. Provides enough power for a full week of commuting.
- Vibration s: Built-in motor for incoming call notifications. Notifies the user even when the earbuds hang loose.
- IPX3 Resistance: Protective coating against vertical water sprays. Blocks damage from light rain or heavy sweat.
Frequently Asked Questions
Does 400H neckband support TF card?
This device includes a dedicated TF card slot for local audio storage. It plays MP3 files directly without a Bluetooth connection.
How long does 400H neckband battery last?
The battery supports 50 hours of continuous music or 40 hours of talk time. It maintains a 400-hour standby state on a single charge.
