▶ Package included: 1pack (10pcs) AG5 Batteries | ▶ Diameter: approximately 7.9mm / 0.31 inches. It provides excellent continuous power. High energy density, long lifespan. | ▶ Attention: Please keep batteries in dry and cool place; Do not recharge or dispose off in fire; Insert the battery in right direction and avoid short-circuit. | ▶ It can also be known as: AG5, D309, D393, G5, G5A, L754, LR48, LR754, RW28, SR48, SR754, SR754W, 15, 48, 193, 309, 393, 546, 309-1 W, 393-1 W, 393A | ▶ Usage: laser pointers Watches calculators computers and digital cameras cameras PDAs remote controls cameras electronic games instruments MP3 players digital voice recorders Toys blood glucose, glucose test meters, hundreds of other electronic products

▶ Light and compact, with a key chain, easy to carry No additional driver installation required | ▶ Card Compatibility: MICRO SD/SDXC/TF card. After testing, support 512GB, plug in TF card can be used directly as a USB flash drive | ▶ Fast speed: in line with 2.0 specification, fast data transmission rate for reliable copy/download/backup. | ▶ Powers via USB port, no additional power supply needed. Anti-magnetic, anti-vibration, moisture-proof, high and low temperature resistant, and resistant to hitting. | ▶ Compatible for Windows ME,2000,XP,Vista,WIN 7 and Mac OS with USB interface

▶ Shell Color: Silver; Total Length: 35cm(13.78in); Material: Metal; Energy-saving design, the working current only needs 30mA. Long-life LED, life can reach more than 100,000 hours; | ▶ Small size, light weight, very easy to put in a briefcase or folder; Applicable to laptop or personal computer with USB interface, compatible with USB1.1 and USB2.0 | ▶ Plug and Play: just plug in the USB port to turn on the USB scanner. To turn off the USB scanner, simply unplug the USB connector. | ▶ Flexible metal bellows can be rotated in all directions, freely bent, adjusted angle, without the need for clips, adhesives and other fixing methods, flexible and convenient! | ▶ High-bright white LED can ensure clear vision in the dark. When you go online or play games at night, turn off the headlights and plug in such a USB light to protect your eyes from fatigue and save electricity. Can not affect the rest of others, let you enjoy the fun of the network and games