Features: 1. Latest version of Bluetooth chip, V5.0 + EDR, ensures stable transmission. 2. Supports voice broadcast. 3. Automatic power-on and power-off function for convenience and energy efficiency. 4. Built-in 550 mAh battery. 5. Provides approximately 10 hours of talk time. Hands-free Car Speaker Kit for Cell Phone – Advanced multi-point connection supports two mobile phones connected simultaneously. Built-in DSP noise suppression and echo cancellation technology for clear o performance. Specifications: - Bluetooth transmission distance: 10M - Speaker: 4Ω 2W, high-definition stereo sound - Dimensions: approximately 100 x 60 x 21mm (3.94 x 2.36 x 0.83 inches) - Color: Black - Charging time: approximately 2 hours - Battery capacity: 550 mAh - Call time: approximately 10 hours - Standby time: up to 500 hours - Bluetooth version: V5.0 + EDR - Transmission distance: 10 meters Package Included: 1 x Car Charger Notes: 1. Due to differences in monitor displays, the image may not reflect the actual color of the item. We guarantee the style matches the pictures shown. 2. Please allow slight dimensional variations due to manual measurement.