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Specifications
Battery Capacity: 190 mAh
Product: Smart Band
Input: 5.0 V
Model: M2239B1
Net Weight: 27 g (including strap)
Water Resistance: 5 ATM
Operating Temperature: 0°C to 43°C
Item Dimensions: 48 × 22.5 × 11 mm
Bluetooth Frequency: 2402–2480 MHz
Wristband Material: TPU
Maximum Output: ≤ 13 dBm
Adjustable Length: 135–210 mm
Battery Type: Lithium-ion polymer
Wireless Connectivity: Bluetooth® Low
Energy 5.1
battery
For product certifications related to this band, please go to Settings > About
band > Regulatory
The Bluetooth® word mark and logos are registered
trademarks owned by Bluetooth SIG, Inc. and any use
of such marks by Xiaomi Inc. is under licence. Other
trademarks and trade names are property of their respective owners.
Precautions
1. Wear the band around your wrist about one-finger's width away from your wrist
bone. Wearing the band too loosely may affect the accuracy of the heart rate
monitoring data.
2. When using the band to measure your heart rate, please keep your wrist still.
3. The band has a water resistance rating of 5 ATM (50 metres depth). It can be
worn in the swimming pool, while swimming near the shore, or during other
shallow-water activities. However, it cannot be used in hot showers or saunas, or
when diving. Furthermore, remember to avoid the band being directly impacted
by swift currents during water sports. The water resistance function is not
permanent and may diminish over time.
4. The touchscreen of the band does not support underwater operation. When
the band comes into contact with water, use a soft cloth to wipe away excess
water from its surface before use.
5. During daily use, avoid wearing the band too tightly and try to keep its contact
area dry. Please clean the wristband regularly with water.
6. If the contact area on your skin shows signs of redness or swelling, stop using
2
400 mA Max.
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