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Here is the website links of the spear parts :Speaker,Amazon.com_ N-bohang 36 mm Diameter Metal Shell Round Internal Magnetic Speaker 2.5W 8 Ohm, Loud Micro Speaker Replacement,IPX7 Waterproof (Pack of 4) _ Electronics.html
Blutooth+AMP,https://www.amazon.co.uk/Muuoeou-CA-8469-Bluetooth-Amplifier-PAM8403-Green/dp/B0DMJJHLB8https://www.amazon.co.uk/Muuoeou-CA-8469-Bluetooth-Amplifier-PAM8403-Green/dp/B0DMJJHLB8
Battery,Amazon.com_ AKZYTUE 3.7V 702030 380mAh Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector _ Health & Household.htmlAmazon.com_ AKZYTUE 3.7V 702030 380mAh Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector _ Health & Household.html
On off Switch,5pcs On Off Switch Replacement Switch Switch Toys For Special Needs Children Toggle Switch Replacements Plastic Toggle Switches - Walmart.com.html5pcs On Off Switch Replacement Switch Switch Toys For Special Needs Children Toggle Switch Replacements Plastic Toggle Switches - Walmart.com.html
Lithium Battery Charger,Amazon.com_ AITRIP 10pcs TP4056 Type-c USB 5V 1A 18650 Lithium Battery Charger Module Charging Board with Dual Protection Functions (10pcs TP4056 Type-c USB) _ Automotive.htmlAmazon.com_ AITRIP 10pcs TP4056 Type-c USB 5V 1A 18650 Lithium Battery Charger Module Charging Board with Dual Protection Functions (10pcs TP4056 Type-c USB) _ Automotive.html
Thaks,Mahbub