BT 27 Neckband wireless earphones

BT 27 Neckband wireless earphonesBluetooth version: Around Bluetooth v5.0Wireless range: Approximately 10 m in unobstructed space.Driver/Audio: Probably dynamic drivers ~ 10 mm (common in this segment) and frequency response around 20 Hz‑20kHz.Battery / Playtime: Possibly ~ 6‑8 hours of playback on a single charge in many listings. For example one listing for “TR‑BT27” neck‑band claims ~8 hours.Standby time: Could be up to ~100 hours or moreCharging time: About ~1.5‑3 hours typical for a full charge.Controls & features: Inline remote on the neck‑band for volume/music/call control; built‑in microphone for hands‑free calls; possibly magnetic earbuds for when idleComfort / design: Neck‑band style (band around the neck) with earbuds attached by short wires; likely soft silicone ear‑tips; may include memory‑wire or flexible neck‑band for comfort during movement.Profiles & connectivity: Supports standard Bluetooth audio profiles such as HSP, HFP, A2DP, AVRCP.Miscellaneous: Lightweight