Feature Highlights: 1. Advanced Chipset: Equipped with the NRF51822 Bluetooth chip for stable and efficient performance. 2. Adjustable Broadcast Interval: Configurable broadcasting interval of 1000ms for flexible application needs. 3. Extended Communication Range: Reliable signal transmission within a range of up to 50 meters. 4. Long-Lasting Power: Powered by a CR2032 button battery with a capacity of 240mAh for extended usage. 5. Robust & Durable Design: Features an IP65 waterproof and dustproof rating, offering protection against splashes and light rain (not suitable for immersion). Product Details: This compact Bluetooth module serves as an efficient iBeacon base station, ideal for positioning and proximity sensing applications. With adjustable broadcast power ranging from -95dB to -4dB (1-9 adjustable levels), it ensures reliable signal coverage. The module is built with high-quality plastic material, measuring 30 x 30 x 10mm, and comes in a sleek white finish. It is widely applicable in wearables, mobile beacons, Rezence wireless charging monitoring, PC peripherals, proximity/alert sensors, consumer electronics (e.g., remote controls), sports/fitness/healthcare sensors, smart RF tags, smart home appliances, industrial/commercial sensors, and electronic toys/games. Specifications: - Chip: NRF51822 - Broadcast Interval: 1000ms - Communication Distance: Within 50m - Battery Model: CR2032 - Battery Capacity: 240mAh - Broadcast Power: -95dB to -4dB (adjustable in 9 levels) - Protection Rating: IP65 (waterproof and dustproof) - Dimensions: 30 x 30 x 10mm - Material: Plastic - Color: White Package Contents: 1 x NRF51822 Bluetooth Module Note: Only the listed items are included. Slight color variations may occur due to lighting and display differences. Dimensions may have a tolerance of +/- 1-3cm.