For Sony SRS-WS1 Neck-mounted Audio Speaker Protective Storage Bag(Black) Tag-For Letv This anti-lost device is a

This anti-lost device is a product based on Bluetooth 4

explosion-proof and wear-resistant

more efficient(do not support Apple device for transferring files and audio)

charging data cable x1

Remote Control (Transmitter) Dimensions 17*4

For Sony SRS-WS1 Neck-mounted Audio Speaker Protective Storage Bag(Black) Tag-For Letv This anti-lost device is a1. Wear resistant, dirt resistant, shock proof and drop proof 2. The inner layer of double sided sponge can be placed or disassembled according to the size of the equipment 3. The rubber wrist strap is thicker and thicker, strong and reliable, and easy to hold 4. Built in hook and loop fastener and elastic buckle to fix the device 5. Fully protect the equipment from general scratches, dirt and abrasion 6. Material: nylon 7. Size: about 280x225x130mm