Features: - Stretchable Controller Suitable for phones, ranging in size of 4 inch - 6 inch - Bluetooth Connection Paired with your phone with Android or with iOS operating system. - Wireless Controller By means of the built-in rechargeable battery, it is easy to carry. Specification: Battery: built-in 250mAh Li-ion batteryPower: DC 5V 0.3720 Package weight: 0.416 kg Product Size(L x W x H): 16.50 x 8.70 x 3.20 cm / 6.5 x 3.43 x 1.26 inches Package Size(L x W x H): 20.00 x 12.50 x 5.00 cm / 7.87 x 4.92 x 1.97 inches Package Contents: 1 x Controller Product Safety Disclaimer: We do not accept any responsibility or liability for misuse of this or any other product. All our products are extensively tested to comply with rigorous and strict QC standards. For certain products (e.g. toys, knives, etc.), we recommend proper supervision as we cannot be held liable for misuse or accidents.