Huawei Technologies Co. Ltd G1157 Manuale Utente

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Keep the ambient temperature between 0°C and 
45°C while the device is being charged. Keep the 
ambient temperature between -10°C to 55℃ for 
using the device powered by battery. 
Preventing Hearing Damage 
Using the receiver, earbuds, headphones, 
speakerphone, or earpieces at high volume can result 
in permanent hearing loss. Be extremely careful when 
listening at high decibel levels. Set the volume to a 
safe level. If you experience strange sounds in your 
ears like ringing or if you hear muffled speech, get 
your hearing checked. If you continue to use high 
volume, your hearing will soon get affected. 
Hearing experts offer the following suggestions to 
protect your hearing: 
 
Reduce the time you use the receiver, earbuds, 
headphones, speakerphone, or earpieces at high 
volume. 
 
Do not increase the volume to block noisy 
surroundings. 
 
Reduce the volume if you can’t hear people 
speaking near you. 
Safety of Children 
Please comply with all precautions with regard to 
children's safety. Letting the child play with your 
device or its accessories, which may include parts that 
can be detached from the device, may prove 
dangerous, as it may present a choking hazard. Make 
sure that small children are kept away from the device 
and accessories.