- Model: BC-991 
- Capacity: 25g (bean hopper) 
- Grind Adjustment: 38 levels (external rotation control, fine to coarse) 
- Burr Material: Ceramic conical burr 
- Power Source: USB rechargeable (2000mAh battery, 13W rated power) 
- Charging Time: Not specified, but battery indicator shows 25%-100% via 4-level lights 
- Grinding Speed: 25g beans ground in 1 minute (upgraded 100% faster than previous models) 
- Dimensions: 7.7x7.7x18cm (LxWxH) 
- Weight: 402g 
- Certifications: CE, FCC, RoHS 
- Housing Material: Plastic + AS + stainless steel core 
- 38-Level Precision Adjustment: External knob for clear, intuitive grind control, suitable for espresso (1-5), moka pot (5-10), hand-brewed coffee (10-20), French press (20-28), and cold brew (28-38). 
- Upgraded Grinding Efficiency: 100% faster speed grinds 25g beans in 1 minute, preserving coffee aroma with low-temperature ceramic burr. 
- Portable & Wireless Design: Lightweight (402g) with USB rechargeability, ideal for outdoor, car, or travel use. 
- Easy Cleaning: Detachable components for direct rinsing, preventing residue and flavor contamination. 
- Battery Indicator: 4-level LED lights show power status for convenient charging management. 
- Durable Construction: Ceramic conical burr resists wear and heat, ensuring consistent particle size. 
- Customization Options: Logo printing and packaging available (MOQ 100 pieces). 
- Warranty: 1-year warranty with free spare parts for after-sales support.