5.4.8.8 Communication at Altitude or Under Water At altitude Communication that take place at a high altitude or under water requires specific technical means. At high altitude (where the ambient pressure is low), the human voice and earphones, as well as loudspeakers, become less efficient gener...
Price is negotiable under different conditions, and we are assuring you to get the most competitive price. Q9: What about the samples? A: If there is stock, we will provide samples, but the customer has to pay the sample ...
Price is negotiable under different conditions, and we are assuring you to get the most competitive price. Q9: What about the samples? A: If there is stock, we will provide samples, but the customer has to pay the sample price and freight. I...
* Playback time:6h(earbuds)+18h(charging case)* Input:DC 5V 60mA(earbuds);DC 5V 500mA(charging case)* Frequency response:20Hz-20KHz* Sensitivity:95dB View more Buyer Questions & Answers (502) Anyone got the headphones🎧? Like quality? Under your app and turn up the volume to 15 ...
All merchandises are in good quality and condition under strict examination before shipping. 2- If it is not man-made damage, we can repair it for free. The returning shipping fee should be borne by customer. 3- Your satisfaction to our products is wha...
Operate under ISO 9001:2000-certified. - Where to buy your products? Simply contact us by email, live chat or telephone and our sales representative will support you. - What's your MOQ? Can we test your samples? Generally our MOQ i...
Operate under ISO 9001:2000-certified.- Where to buy your products?Simply contact us by email, live chat or telephone and our sales representative will support you. - What's your MOQ? Can we test your samples?Generally our MOQ is 50 pieces.Yes, and sample fees c...
Sleeping Speaker with Volume Control and Timer Battery Powered under Pillow Earphone Bone Conduction Technology $8.40 - $8.80 Min. order: 2 pieces Popular brand featured technology V69 Smartwatch with 1.85 Inch HD Display 400+ Watch Faces Big Battery Waterproof Fitness Tracker $17.40 - $19.80 Min...
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All merchandises are in good quality and condition under strict examination before shipping.2- If it is not man-made damage, we can repair it for free. The returning shipping fee should be borne by customer.3- Your satisfaction to our products is what we have been hard work...